fix(codex-link): stop list re-downloads and count context by measurement

Keep the upstream model-list ETag: chatgpt.com repeats it in every answer
(x-models-etag), and the bridge's own stamp made Codex re-download the
~17 MB merged list after every answer (6198 times in one day).

Replace the flat 2 bytes/token estimate with measured ratios (673 real
requests): Claude family and unknown names 2.5, recognised non-Claude
families 3.4. Non-Claude chats were counted about twice as large, were
summarized too early and got false "does not fit" errors.

Ship IDE beta.47 (bridge version 26).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XeNgWNzPjzUKQuS32RUYXx

apps/desktop/assets/codex-bridge/README.md

@@ -27,6 +27,27 @@ Run: `python bridge.py --home <data dir> --hermes-home <agent home>`. The IDE wr
 
 Tests: `python -m unittest discover` in this directory.
 
+## Version 26: list downloaded once, context counted by measurement (IDE beta.47)
+
+- Model list: the upstream stamp (ETag) is kept. chatgpt.com repeats it in every answer (`x-models-etag`); the
+  bridge's own stamp made Codex re-download the ~17 MB merged list after every answer (6198 times on 20 October
+  2026). Added-model changes still arrive on Codex's own 5-minute list refresh.
+- Token estimate: measured on 673 real requests (bridge bytes against provider-reported input tokens). Claude
+  family and unknown names use 2.5 bytes/token (Claude lowest quartile 2.55); recognised non-Claude families use
+  3.4 (their lowest 5%). The old flat 2 bytes/token counted non-Claude chats about twice as large, summarized too
+  early and raised false "Son mesaj ve zorunlu talimatlar hedefe sigmiyor" errors.
+
+## Version 25: subscription WebSocket stays original (IDE beta.46)
+
+User decision (20 October 2026): "Codex orjinal aynen kalacak, sadece ek combo ve model ekleyeceğiz."
+Codex opens a Responses WebSocket for its own models. The splitter used to refuse it with 426, so
+subscription chats fell back to HTTP and re-sent the whole conversation on every step. Now:
+
+- Codex's own model (`x-codex-routing-hint: model=...`): the WebSocket is tunnelled to chatgpt.com byte for byte.
+- Added model, remembered transfer, or transfer history inside a message: 426 / close frame; that chat stays
+  on the existing HTTP path for the life of the Codex process, so added-model and transition handling is unchanged.
+- `bridge.json` `"abonelik_websocket": false` restores the old refusal.
+
 ## Version 24: portable model switches and summary coverage (IDE beta.45)
 
 Cross-provider requests replace encrypted reasoning and every typed encrypted

apps/desktop/assets/codex-bridge/bridge.py

@@ -11,6 +11,8 @@ Codex'te tek adres ayari (`openai_base_url`) oldugu icin butun istekler buraya g
     (ide/..., 9r/..., model_map)    o surece HIC gitmez.
   * Model listesi                -> kopru ayaktaysa ek modelleri eklenmis liste; degilse chatgpt.com'un listesi.
   * Geri kalan her sey           -> chatgpt.com'a, oldugu gibi.
+  * Surekli baglanti (WebSocket) -> Codex'in kendi modeliyse chatgpt.com'a bayt bayt tunel (Codex'in ozgun hizli yolu).
+    Ek model ya da gecis gecmisi gorulurse o sohbet 426 ile HTTP'ye birakilir; ek model/gecis mantigi HTTP'de kalir.
 
 Karisik gecmiste yerel aktarim hazirligi inference'dan ayridir. Abonelik
 inference'i her zaman CHATGPT'ye; ek model inference'i KOPRU'ye gider.
@@ -21,6 +23,11 @@ Yerel denetim: GET /aiturk/codex-baglama/status, POST .../stop, POST .../refresh
 """
 import gzip
 import hashlib
+import socket
+import ssl
+import struct
+import urllib.parse
+import zlib
 import http.client
 import http.server
 import json
@@ -35,7 +42,7 @@ import gecis_context
 import terminal_stream
 
 HERE = os.path.dirname(os.path.abspath(__file__))
-SURUM = "24"         # AITURK IDE'nin bekledigi kopru surumu (codex-link-config.ts CODEX_BRIDGE_VERSION)
+SURUM = "26"         # AITURK IDE'nin bekledigi kopru surumu (codex-link-config.ts CODEX_BRIDGE_VERSION)
 try:
     with open(os.path.abspath(__file__), "rb") as _f:
         KOD = hashlib.sha256(_f.read()).hexdigest()[:8]
@@ -160,6 +167,88 @@ def model_oku(govde, kodlama):
         return None
 
 
+# --- Surekli baglanti (WebSocket) ---------------------------------------------------------------------------
+# Kullanici karari (20 Ekim 2026): "Codex orjinal aynen kalacakti, sadece ek combo ve model ekleyecektik."
+# Codex abonelik modelinde chatgpt.com'a WebSocket acar; reddedilirse HTTP'ye duser ve her adimda butun sohbeti
+# yeniden gonderir. Abonelik sohbeti bu yuzden chatgpt.com'a dokunulmadan tunellenir. Ek model ya da gecis
+# gecmisi olan sohbet ilk anda 426 alir ve HTTP'de kalir (bugunku ek model/gecis davranisi aynen).
+WS_HTTP = {}                 # session-id -> zaman: bu Codex surecinde HTTP'de kalacak sohbetler
+ws_kilit = threading.Lock()
+
+
+def ws_ipucu_model(baslik):
+    """Codex'in el sikismadaki model ipucu (x-codex-routing-hint: model=gpt-6.1-sol)."""
+    for parca in (baslik or "").replace(",", ";").split(";"):
+        k, _, v = parca.partition("=")
+        if k.strip().lower() == "model":
+            return v.strip()
+    return ""
+
+
+def ws_http_isaretle(sid):
+    if not sid:
+        return
+    with ws_kilit:
+        WS_HTTP[sid] = time.time()
+        while len(WS_HTTP) > 4096:
+            del WS_HTTP[next(iter(WS_HTTP))]
+
+
+def ws_cerceve_oku(oku):
+    """Tek cerceve: (ham_bayt, fin, rsv1, opcode, acik_yuk) ya da baglanti bittiyse None."""
+    bas = oku(2)
+    if len(bas) < 2:
+        return None
+    b0, b1 = bas[0], bas[1]
+    n, ek = b1 & 0x7F, b""
+    if n == 126:
+        ek = oku(2)
+        if len(ek) < 2:
+            return None
+        n = struct.unpack(">H", ek)[0]
+    elif n == 127:
+        ek = oku(8)
+        if len(ek) < 8:
+            return None
+        n = struct.unpack(">Q", ek)[0]
+    maske = oku(4) if b1 & 0x80 else b""
+    if b1 & 0x80 and len(maske) < 4:
+        return None
+    yuk = oku(n) if n else b""
+    if len(yuk) < n:
+        return None
+    ham = bas + ek + maske + yuk
+    if maske and n:
+        m = (maske * (n // 4 + 1))[:n]
+        yuk = (int.from_bytes(yuk, "big") ^ int.from_bytes(m, "big")).to_bytes(n, "big")
+    return ham, bool(b0 & 0x80), bool(b0 & 0x40), b0 & 0x0F, yuk
+
+
+def ws_kapat_cercevesi(kod=1011, neden="AITURK: HTTP yoluna geciliyor"):
+    yuk = struct.pack(">H", kod) + neden.encode("utf-8")[:120]
+    return bytes([0x88, len(yuk)]) + yuk
+
+
+def ws_mesaj_engeli(veri, hesap=""):
+    """Bu mesaj chatgpt.com'a tunelden gidemez mi? Neden metni ya da None (gidebilir)."""
+    try:
+        m = json.loads(veri)
+    except (ValueError, UnicodeDecodeError):
+        return None
+    if not isinstance(m, dict) or m.get("type") != "response.create":
+        return None
+    if ek_model_mu(m.get("model")):
+        return "ek model"
+    if gecis_context.foreign(m) or gecis_context.foreign_history(m):
+        return "gecis gecmisi"
+    thread = str(m.get("prompt_cache_key") or "")
+    if thread:
+        scope = hashlib.sha256((str(hesap or "") + "|" + thread).encode()).hexdigest()
+        if ek_model_mu(TRANSFERS.get(scope) or ""):
+            return "gecis gecmisi"
+    return None
+
+
 ISTEK_ATLA = {"host", "content-length", "accept-encoding", "transfer-encoding", "connection"}
 YANIT_ATLA = {"host", "content-length", "accept-encoding", "transfer-encoding", "connection", "content-encoding"}
 
@@ -491,6 +580,138 @@ class H(http.server.BaseHTTPRequestHandler):
             return None, True
         return result["value"], started
 
+    def _ws_ret(self, n, neden):
+        """426: Codex bekletmeden HTTP yoluna duser (ek model ve gecisler bu yolda islenir)."""
+        log(f"[{n} WS] HTTP yoluna birakildi: {neden}")
+        self.send_response(426)
+        self.send_header("Content-Length", "0")
+        self.send_header("Connection", "close")
+        self.end_headers()
+        self.close_connection = True
+
+    def _ws(self, n):
+        model = ws_ipucu_model(self.headers.get("x-codex-routing-hint"))
+        sid = self.headers.get("session-id") or self.headers.get("thread-id") or ""
+        hesap = self.headers.get("chatgpt-account-id") or ""
+        thread = self.headers.get("thread-id") or sid
+        scope = hashlib.sha256((str(hesap) + "|" + thread).encode()).hexdigest() if thread else ""
+        if CFG.get("abonelik_websocket") is False:
+            return self._ws_ret(n, "ayarla kapali")
+        if not self.path.split("?", 1)[0].rstrip("/").endswith("/responses"):
+            return self._ws_ret(n, "yol")
+        if not model:
+            return self._ws_ret(n, "model ipucu yok")
+        if ek_model_mu(model):
+            return self._ws_ret(n, f"ek model {model}")
+        with ws_kilit:
+            http_de = sid in WS_HTTP
+        if http_de:
+            return self._ws_ret(n, "sohbet HTTP yolunda")
+        if scope and ek_model_mu(TRANSFERS.get(scope) or ""):
+            return self._ws_ret(n, "gecis gecmisi")
+        u = urllib.parse.urlsplit(CHATGPT)
+        guvenli = u.scheme == "https"
+        try:
+            ust = socket.create_connection((u.hostname, u.port or (443 if guvenli else 80)), timeout=20)
+            if guvenli:
+                ust = ssl.create_default_context().wrap_socket(ust, server_hostname=u.hostname)
+            satirlar = [f"GET {self.path} HTTP/1.1", f"Host: {u.netloc}"]
+            satirlar += [f"{k}: {v}" for k, v in self.headers.items() if k.lower() != "host"]
+            ust.sendall(("\r\n".join(satirlar) + "\r\n\r\n").encode("latin-1"))
+            cevap = b""
+            while b"\r\n\r\n" not in cevap:
+                parca = ust.recv(65536)
+                if not parca or len(cevap) > 65536:
+                    raise OSError("el sikisma cevabi eksik")
+                cevap += parca
+            bas, _, artik = cevap.partition(b"\r\n\r\n")
+            durum = int(bas.split(b" ", 2)[1])
+        except (OSError, ValueError, IndexError) as e:
+            return self._ws_ret(n, f"chatgpt.com acilamadi: {type(e).__name__}: {e}")
+        if durum != 101:
+            ust.close()
+            return self._ws_ret(n, f"chatgpt.com {durum}")
+        uzanti = ""
+        for satir in bas.split(b"\r\n")[1:]:
+            k, _, v = satir.decode("latin-1").partition(":")
+            if k.strip().lower() == "sec-websocket-extensions":
+                uzanti = v.strip().lower()
+        sikistirma = "permessage-deflate" in uzanti
+        baglamsiz = "client_no_context_takeover" in uzanti
+        self.close_connection = True
+        yaz_kilit = threading.Lock()
+        bitti = threading.Event()
+        ust.settimeout(None)
+        self.connection.settimeout(None)
+
+        def istemciye(veri):
+            with yaz_kilit:
+                self.wfile.write(veri)
+                self.wfile.flush()
+
+        def kapat():
+            bitti.set()
+            for soket in (ust, self.connection):
+                try:
+                    soket.shutdown(socket.SHUT_RDWR)
+                except OSError:
+                    pass
+
+        istemciye(bas + b"\r\n\r\n" + artik)
+        log(f"[{n} WS {model}] chatgpt.com'a dogrudan tunel acildi")
+
+        def asagi():
+            try:
+                while True:
+                    parca = ust.recv(65536)
+                    if not parca:
+                        break
+                    istemciye(parca)
+            except OSError:
+                pass
+            finally:
+                kapat()
+
+        threading.Thread(target=asagi, daemon=True).start()
+        acici = zlib.decompressobj(-zlib.MAX_WBITS) if sikistirma else None
+        ham_parcalar, yukler, sikisik, mesaj = [], [], False, 0
+        try:
+            while not bitti.is_set():
+                c = ws_cerceve_oku(self.rfile.read)
+                if c is None:
+                    break
+                ham, fin, rsv1, op, yuk = c
+                if op >= 8:
+                    ust.sendall(ham)
+                    continue
+                if op in (1, 2):
+                    ham_parcalar, yukler, sikisik = [ham], [yuk], rsv1
+                else:
+                    ham_parcalar.append(ham)
+                    yukler.append(yuk)
+                if not fin:
+                    continue
+                veri = b"".join(yukler)
+                if sikisik and acici is not None:
+                    if baglamsiz:
+                        acici = zlib.decompressobj(-zlib.MAX_WBITS)
+                    veri = acici.decompress(veri + b"\x00\x00\xff\xff")
+                neden = ws_mesaj_engeli(veri, hesap)
+                if neden:
+                    ws_http_isaretle(sid)
+                    log(f"[{n} WS {model}] {neden}: sohbet HTTP yoluna aktarildi ({mesaj} mesaj tunelden gitti)")
+                    istemciye(ws_kapat_cercevesi())
+                    break
+                ust.sendall(b"".join(ham_parcalar))
+                ham_parcalar, yukler = [], []
+                mesaj += 1
+        except (OSError, zlib.error) as e:
+            log(f"[{n} WS {model}] baglanti hatasi: {type(e).__name__}: {e}")
+        finally:
+            kapat()
+            ust.close()
+        log(f"[{n} WS {model}] kapandi, {mesaj} mesaj")
+
     def _isle(self):
         self._native_return_scope = None
         self._failure_key = None
@@ -498,12 +719,7 @@ class H(http.server.BaseHTTPRequestHandler):
             sira[0] += 1
             n = sira[0]
         if "websocket" in (self.headers.get("Upgrade") or "").lower():
-            # Bugunku calisan durum: surekli acik baglanti reddedilir, Codex olagan yola duser.
-            self.send_response(426)
-            self.send_header("Content-Length", "0")
-            self.send_header("Connection", "close")
-            self.end_headers()
-            return
+            return self._ws(n)
         govde = self._oku()
         yol = self.path
         if yol.startswith("/aiturk/codex-baglama/"):

apps/desktop/assets/codex-bridge/gecis_context.py

@@ -68,9 +68,29 @@ def encoded(value):
     return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"))
 
 
+# Bytes per token, measured on 673 real added-model requests (20 October 2026; bridge request bytes against the
+# provider's reported input tokens): Claude family 2.55 at the lowest quartile (median 2.58); every other family
+# 3.4 or more at the lowest 5% (Gemini, GPT, abliteration, Jail-Omni, bekci ~3.7-4.2). The old flat 2 bytes/token
+# counted non-Claude chats about twice as large, summarized too early and raised false "does not fit" errors.
+# Claude, profiles and anything unrecognised keep the safe 2.5; only a recognised non-Claude family gets 3.4.
+SAFE_BYTES_PER_TOKEN = 2.5
+NON_CLAUDE_BYTES_PER_TOKEN = 3.4
+CLAUDE_HINTS = ("claude", "anthropic", "opus", "sonnet", "haiku")
+NON_CLAUDE_HINTS = ("gemini", "gemma", "gpt", "grok", "deepseek", "qwen", "glm", "kimi", "llama", "mistral",
+                    "nemotron", "minimax", "seed-", "mimo", "abliterat")
+
+
+def bytes_per_token(model):
+    slug = str(model or "").lower()
+    if not slug or any(h in slug for h in CLAUDE_HINTS):
+        return SAFE_BYTES_PER_TOKEN
+    return NON_CLAUDE_BYTES_PER_TOKEN if any(h in slug for h in NON_CLAUDE_HINTS) else SAFE_BYTES_PER_TOKEN
+
+
 def tokens(value):
-    # Deliberately more conservative than the old 3.2 bytes/token estimate.
-    return (len(encoded(value).encode("utf-8")) + 1) // 2
+    """Conservative token estimate. A request (dict with "model") uses that model's measured ratio."""
+    model = value.get("model") if isinstance(value, dict) else None
+    return int(len(encoded(value).encode("utf-8")) / bytes_per_token(model)) + 1
 
 
 def input_budget(req, window, settings=None, automatic=False):

apps/desktop/assets/codex-bridge/kopru.py

@@ -1628,7 +1628,6 @@ class H(http.server.BaseHTTPRequestHandler):
             out = raw; changed = 0
         raw_len = len(out)
         duz = out                   # sikistirilmamis govde: yedege bu yazilir
-        catalog_etag = 'W/"astrabridge-' + hashlib.sha256(out).hexdigest()[:24] + '"'
         enc_out = None
         if "gzip" in (self.headers.get("Accept-Encoding") or "").lower() and changed:
             import gzip
@@ -1637,8 +1636,9 @@ class H(http.server.BaseHTTPRequestHandler):
         for k, v in resp.headers.items():
             kl = k.lower()
             if kl in RESP_HOP or kl in ("date", "set-cookie", "cf-ray"): continue
-            if kl in ("etag", "x-models-etag") and changed:
-                v = catalog_etag
+            # The upstream list stamp is kept (20 October 2026). chatgpt.com sends the same stamp in every answer
+            # (x-models-etag); a different stamp here made Codex re-download this ~17 MB list after every answer
+            # (6198 times in one day). Added-model changes still arrive on Codex's own 5-minute list refresh.
             hdrs_out.append((k, v))
         if changed:
             # Yedek her zaman sikistirilmamis govdeyle tutulur (istemci gzip istese de).

apps/desktop/assets/codex-bridge/test_ayirici.py

@@ -6,10 +6,13 @@ import hashlib
 import http.client
 import http.server
 import json
+import socket
+import struct
 import tempfile
 import threading
 import time
 import unittest
+import zlib
 
 import bridge
 
@@ -57,6 +60,70 @@ def zstd(veri):
         return zstandard.ZstdCompressor().compress(veri)
 
 
+def ws_cerceve(veri, op=1, rsv1=False, maske=b"\x01\x02\x03\x04"):
+    """Istemci (Codex) cercevesi: maskeli."""
+    b0 = 0x80 | (0x40 if rsv1 else 0) | op
+    n = len(veri)
+    bas = bytes([b0, 0x80 | n]) if n < 126 else bytes([b0, 0x80 | 126]) + struct.pack(">H", n) if n < 65536 \
+        else bytes([b0, 0x80 | 127]) + struct.pack(">Q", n)
+    return bas + maske + bytes(c ^ maske[i % 4] for i, c in enumerate(veri))
+
+
+def sikistir(sik, veri):
+    return (sik.compress(veri) + sik.flush(zlib.Z_SYNC_FLUSH))[:-4]
+
+
+class SahteWs:
+    """Sahte chatgpt.com WebSocket ucu: el sikismayi ve gelen ham cerceveleri kaydeder, her mesaja ozetle cevap verir."""
+
+    def __init__(self, durum=101, uzanti=""):
+        self.durum, self.uzanti, self.ham, self.baslik, self.baglanti = durum, uzanti, [], {}, 0
+        self.dinle = socket.socket()
+        self.dinle.bind(("127.0.0.1", 0))
+        self.dinle.listen(8)
+        self.port = self.dinle.getsockname()[1]
+        threading.Thread(target=self._kabul, daemon=True).start()
+
+    def _kabul(self):
+        while True:
+            try:
+                s, _ = self.dinle.accept()
+            except OSError:
+                return
+            self.baglanti += 1
+            threading.Thread(target=self._bag, args=(s,), daemon=True).start()
+
+    def _bag(self, s):
+        f = s.makefile("rb")
+        satirlar = []
+        while True:
+            satir = f.readline().decode("latin-1").rstrip("\r\n")
+            if not satir:
+                break
+            satirlar.append(satir)
+        for satir in satirlar[1:]:
+            k, _, v = satir.partition(":")
+            self.baslik[k.strip().lower()] = v.strip()
+        if self.durum != 101:
+            s.sendall(b"HTTP/1.1 %d Hayir\r\nContent-Length: 0\r\n\r\n" % self.durum)
+            s.close()
+            return
+        cevap = "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\n"
+        if self.uzanti:
+            cevap += f"Sec-WebSocket-Extensions: {self.uzanti}\r\n"
+        s.sendall((cevap + "\r\n").encode())
+        ac = zlib.decompressobj(-zlib.MAX_WBITS)
+        while True:
+            c = bridge.ws_cerceve_oku(f.read)
+            if c is None or c[3] == 8:
+                break
+            self.ham.append(c[0])
+            veri = ac.decompress(c[4] + b"\x00\x00\xff\xff") if c[2] else c[4]
+            yuk = b"yanit:" + hashlib.sha256(veri).hexdigest().encode()
+            s.sendall(bytes([0x81, len(yuk)]) + yuk)
+        s.close()
+
+
 class Ayirici(unittest.TestCase):
     def setUp(self):
         self.ozgun = sunucu(duz(200, b'event: response.completed\ndata: {"ok":1}\n\n', "text/event-stream"))
@@ -72,6 +139,7 @@ class Ayirici(unittest.TestCase):
         self.transfer_old = bridge.TRANSFER_PATH, dict(bridge.TRANSFERS)
         bridge.TRANSFER_PATH = self.gecici.name + "/transfers.json"
         bridge.TRANSFERS.clear()
+        bridge.WS_HTTP.clear()
         bridge.CHATGPT = f"http://127.0.0.1:{self.ozgun.server_address[1]}"
         bridge.KOPRU = f"http://127.0.0.1:{self.kopru.server_address[1]}"
         bridge.LOGDIR = self.gecici.name
@@ -209,11 +277,107 @@ class Ayirici(unittest.TestCase):
         d = json.loads(self.iste("GET", "/aiturk/codex-baglama/status")[1])
         self.assertEqual((d["surum"], d["ide_model"], d["kopru"], d["ayirici"]), (bridge.SURUM, 147, "calisiyor", True))
 
-    def test_a_persistent_connection_is_refused_the_way_it_is_today(self):
+    def test_a_persistent_connection_without_a_model_hint_is_refused_the_way_it_is_today(self):
         durum, _, _ = self.iste("GET", "/backend-api/codex/responses", None, {"Upgrade": "websocket", "Connection": "Upgrade"})
         self.assertEqual(durum, 426)
         self.assertEqual(self.ozgun.gelen + self.kopru.gelen, [])
 
+    # --- Surekli baglanti: abonelik modeli chatgpt.com'a tunellenir, ek model/gecis HTTP'de kalir ---------------
+    def ws_ust(self, durum=101, uzanti=""):
+        ust = SahteWs(durum, uzanti)
+        bridge.CHATGPT = f"http://127.0.0.1:{ust.port}"
+        return ust
+
+    def ws_ac(self, model="gpt-6.1-sol", sid="sohbet-1", uzanti=True):
+        k = socket.create_connection(("127.0.0.1", self.on.server_address[1]), timeout=10)
+        baslik = ["GET /backend-api/codex/responses HTTP/1.1", "Host: 127.0.0.1", "Connection: Upgrade",
+                  "Upgrade: websocket", "Sec-WebSocket-Version: 13", "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==",
+                  "authorization: Bearer sahte", "chatgpt-account-id: hesap", f"session-id: {sid}", f"thread-id: {sid}",
+                  "openai-beta: responses_websockets=2026-02-06"]
+        if model:
+            baslik.append(f"x-codex-routing-hint: model={model}")
+        if uzanti:
+            baslik.append("sec-websocket-extensions: permessage-deflate; client_max_window_bits")
+        k.sendall(("\r\n".join(baslik) + "\r\n\r\n").encode())
+        cevap = b""
+        while b"\r\n\r\n" not in cevap:
+            parca = k.recv(4096)
+            if not parca:
+                break
+            cevap += parca
+        return k, int(cevap.split(b" ", 2)[1]), cevap.partition(b"\r\n\r\n")[2]
+
+    def test_codex_own_model_websocket_is_tunnelled_to_chatgpt_byte_for_byte(self):
+        ust = self.ws_ust()
+        k, durum, _ = self.ws_ac()
+        self.assertEqual(durum, 101)
+        mesaj = json.dumps({"type": "response.create", "model": "gpt-6.1-sol", "input": [{"type": "message", "role": "user",
+                            "content": [{"type": "input_text", "text": "selam " * 5000}]}]}).encode()
+        cerceve = ws_cerceve(mesaj)
+        k.sendall(cerceve)
+        cevap = bridge.ws_cerceve_oku(k.makefile("rb").read)
+        self.assertEqual(cevap[4], b"yanit:" + hashlib.sha256(mesaj).hexdigest().encode())
+        self.assertEqual(ust.ham[0], cerceve)                         # Codex'in cercevesi aynen gitti
+        self.assertEqual(ust.baslik["authorization"], "Bearer sahte")
+        self.assertEqual(ust.baslik["openai-beta"], "responses_websockets=2026-02-06")
+        self.assertEqual(self.kopru.gelen, [])
+        k.close()
+
+    def test_added_model_websocket_falls_back_to_http_at_once(self):
+        ust = self.ws_ust()
+        k, durum, _ = self.ws_ac(model="ide/claude-claude-haiku-5-5")
+        self.assertEqual(durum, 426)
+        self.assertEqual(ust.baglanti, 0)
+        k.close()
+
+    def test_switching_to_an_added_model_on_an_open_tunnel_moves_the_chat_to_http(self):
+        ust = self.ws_ust()
+        k, durum, _ = self.ws_ac(sid="sohbet-gecis")
+        self.assertEqual(durum, 101)
+        k.sendall(ws_cerceve(json.dumps({"type": "response.create", "model": "ide/agy-gemini-3.8-flash-low", "input": []}).encode()))
+        kapanis = bridge.ws_cerceve_oku(k.makefile("rb").read)
+        self.assertEqual(kapanis[3], 8)                                # kapanis cercevesi
+        self.assertEqual(ust.ham, [])                                  # ek model istegi chatgpt.com'a gitmedi
+        k.close()
+        k2, durum2, _ = self.ws_ac(sid="sohbet-gecis")
+        self.assertEqual(durum2, 426)                                  # ayni sohbet artik HTTP yolunda
+        k2.close()
+
+    def test_compressed_message_with_transfer_history_is_detected(self):
+        ust = self.ws_ust(uzanti="permessage-deflate")
+        k, durum, _ = self.ws_ac(sid="sohbet-sikisik")
+        self.assertEqual(durum, 101)
+        sik = zlib.compressobj(wbits=-zlib.MAX_WBITS)
+        ilk = json.dumps({"type": "response.create", "model": "gpt-6.1-sol", "input": [{"type": "message", "role": "user",
+                          "content": [{"type": "input_text", "text": "ilk"}]}]}).encode()
+        k.sendall(ws_cerceve(sikistir(sik, ilk), rsv1=True))
+        okur = k.makefile("rb").read
+        self.assertEqual(bridge.ws_cerceve_oku(okur)[3], 1)
+        ikinci = json.dumps({"type": "response.create", "model": "gpt-6.1-sol",
+                             "input": [{"type": "message", "role": "assistant", "id": "chatcmpl-abc", "content": []}]}).encode()
+        k.sendall(ws_cerceve(sikistir(sik, ikinci), rsv1=True))
+        self.assertEqual(bridge.ws_cerceve_oku(okur)[3], 8)
+        self.assertEqual(len(ust.ham), 1)
+        k.close()
+
+    def test_chat_with_a_remembered_transfer_stays_on_http(self):
+        self.ws_ust()
+        scope = hashlib.sha256(b"hesap|sohbet-eski").hexdigest()
+        bridge.TRANSFERS[scope] = "ide/Jail-Omni"
+        k, durum, _ = self.ws_ac(sid="sohbet-eski")
+        self.assertEqual(durum, 426)
+        k.close()
+
+    def test_chatgpt_refusing_the_tunnel_or_setting_off_falls_back_to_http(self):
+        ust = self.ws_ust(durum=401)
+        k, durum, _ = self.ws_ac(sid="sohbet-red")
+        self.assertEqual((durum, ust.baglanti), (426, 1))
+        k.close()
+        bridge.CFG["abonelik_websocket"] = False
+        k, durum, _ = self.ws_ac(sid="sohbet-kapali")
+        self.assertEqual((durum, ust.baglanti), (426, 1))
+        k.close()
+
     def test_which_side_a_model_is_on(self):
         for slug, ek in (("ide/Opus-5", True), ("9r/ag/gemini", True), ("gpt-6-astra", False), ("gpt-6.1-sol", False),
                          ("", False), (None, False), ("idea", False)):

apps/desktop/assets/codex-bridge/test_denetim_ek.py

@@ -483,6 +483,19 @@ class Liste(unittest.TestCase):
         self.assertIn(("Content-Encoding", "gzip"), fake.sent)
         env["save_last_models"].assert_called_once()
 
+    def test_the_list_keeps_the_upstream_stamp_so_codex_does_not_refetch_after_every_answer(self):
+        """chatgpt.com repeats its list stamp (x-models-etag) in every answer; a changed stamp here made Codex
+        download the whole list again after each answer (6198 times on 20 October 2026)."""
+        env = self.env(EXTRA_MODELS=[{"slug": "ide/a", "display_name": "Aaa"}])
+        fake = Sahte({"chatgpt-account-id": "hesap"}, "GET")
+        resp = types.SimpleNamespace(read=lambda: json.dumps(self.UPSTREAM).encode(),
+                                     headers={"ETag": 'W/"40b107fc"', "x-models-etag": 'W/"40b107fc"'})
+        env["_models"](fake, resp, "[t]")
+        sent = dict(fake.sent)
+        self.assertEqual((sent["ETag"], sent["x-models-etag"]), ('W/"40b107fc"', 'W/"40b107fc"'))
+        self.assertIn("ide/a", [m["slug"] for m in json.loads(fake.wfile.getvalue())["models"]])
+        self.assertEqual(dict(env["LAST_MODELS"]["hesap"]["headers"])["ETag"], 'W/"40b107fc"')
+
     def test_no_network_still_serves_the_last_list(self):
         cached = {"headers": [("Content-Type", "application/json")], "body": b'{"models": []}', "at": "x"}
         env = self.env(LAST_MODELS={"hesap": cached})

apps/desktop/assets/codex-bridge/test_gecis_context.py

@@ -195,8 +195,9 @@ class PreparationService(unittest.TestCase):
 
     def test_output_reserve_can_require_preparation_below_seventy_percent(self):
         req = {"model": "ide/test", "max_output_tokens": 24000,
-               "input": [{"role": "user", "content": "x" * 20000}, {"role": "user", "content": "latest"}]}
+               "input": [{"role": "user", "content": "x" * 30000}, {"role": "user", "content": "latest"}]}
         self.assertLess(gc.tokens(req), int(32768 * .7))
+        self.assertGreater(gc.tokens(req), 32768 - 24000)
         result = self.service._prepare_transfer({"request": req})["request"]
         self.assertLessEqual(gc.tokens(result), 32768 - 24000)
         self.assertTrue(self.server.gelen)
@@ -446,5 +447,35 @@ class SocketMigration(fixtures.Ayirici):
         self.assertEqual(len(self.kopru.gelen), 1)
 
 
+class TokenEstimate(unittest.TestCase):
+    """Measured bytes/token (20 October 2026): Claude ~2.55, other families >= 3.4. Unknown stays safe."""
+
+    def test_ratio_follows_the_measured_model_family_and_unknown_stays_safe(self):
+        for slug, ratio in (("ide/claude-claude-haiku-5-5", 2.5), ("ide/claude-claude-opus-5-5", 2.5),
+                            ("ide/nanogpt-Qwen3.5-27B-Claude-4.6-Opus-Reasoning-Distilled", 2.5),
+                            ("ide/Jail-Omni", 2.5), ("ide/Takim-Hizli", 2.5), ("", 2.5), (None, 2.5),
+                            ("ide/agy-gemini-3.8-flash-low", 3.4), ("gpt-6.1-sol", 3.4), ("ide/deepseek-deepseek-flash", 3.4),
+                            ("ide/abliteration-abliterated-model-large-v2", 3.4), ("ide/grok-cli-grok-4.7", 3.4)):
+            self.assertEqual(gc.bytes_per_token(slug), ratio, slug)
+
+    def test_estimate_never_counts_fewer_tokens_than_the_measured_lowest_ratio(self):
+        text = "Türkçe ve English karışık bir metin, kod: def f(x): return x * 2. " * 4000
+        size = len(gc.encoded({"model": "ide/claude-claude-opus-5-5", "input": text}).encode("utf-8"))
+        self.assertGreaterEqual(gc.tokens({"model": "ide/claude-claude-opus-5-5", "input": text}), size / 2.55)
+        size = len(gc.encoded({"model": "ide/agy-gemini-3.8-flash-low", "input": text}).encode("utf-8"))
+        self.assertGreaterEqual(gc.tokens({"model": "ide/agy-gemini-3.8-flash-low", "input": text}), size / 3.41)
+        self.assertGreater(gc.tokens([text]), gc.tokens({"model": "gpt-6.1-sol", "input": text}))  # no model: safe
+
+    def test_a_chat_that_really_fits_a_non_claude_target_is_not_refused(self):
+        """Before: 2 bytes/token counted this ~75k-token chat as ~130k and refused it for a 128k model."""
+        turn = [{"type": "message", "role": "user", "content": [{"type": "input_text", "text": "soru " + "x" * 64000}]},
+                {"type": "message", "role": "assistant", "content": [{"type": "output_text", "text": "cevap " + "y" * 64000}]}]
+        req = {"model": "ide/agy-gemini-3.8-flash-low", "input": turn * 2}
+        self.assertLess(gc.tokens(req), int(128000 * 0.70))
+        self.assertGreater(len(gc.encoded(req).encode("utf-8")) // 2, int(128000 * 0.70))   # old estimate refused it
+        prepared = gc.Preparer().prepare(req, 128000, lambda text, budget: self.fail("must not summarize"))
+        self.assertEqual(prepared["input"], req["input"])
+
+
 if __name__ == "__main__":
     unittest.main()

apps/desktop/electron/codex-link-config.ts

@@ -27,7 +27,7 @@ export const CODEX_LINK_REFRESH_URL = `${CODEX_LINK_ORIGIN}/aiturk/codex-baglama
 export const CODEX_LINK_MARKER = '# AITURK IDE Codex Baglama'
 // Must equal SURUM in assets/codex-bridge/bridge.py; a running bridge that reports
 // another version is restarted so an updated IDE never keeps an old bridge alive.
-export const CODEX_BRIDGE_VERSION = '24'
+export const CODEX_BRIDGE_VERSION = '26'
 export const CODEX_LINK_LINE = `openai_base_url = "${CODEX_LINK_ORIGIN}/backend-api/codex"  ${CODEX_LINK_MARKER}`
 
 export const CODEX_LINK_RUN_KEY = 'HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run'

apps/desktop/package.json

@@ -2,7 +2,7 @@
   "name": "aiturk-ide",
   "productName": "AITURK IDE",
   "private": true,
-  "version": "1.0.0-beta.45",
+  "version": "1.0.0-beta.47",
   "description": "TurkServis resmi yapay zekâ geliştirme ortamı. Hermes Agent tabanlıdır.",
   "author": "AITURK / TurkServis",
   "repository": {

package-lock.json

@@ -65,7 +65,7 @@
     },
     "apps/desktop": {
       "name": "aiturk-ide",
-      "version": "1.0.0-beta.45",
+      "version": "1.0.0-beta.47",
       "license": "MIT",
       "dependencies": {
         "@assistant-ui/core": "0.2.23",