diff --git a/open-sse/config/providers/index.ts b/open-sse/config/providers/index.ts
index cc8ec3a703..f3ce825532 100644
--- a/open-sse/config/providers/index.ts
+++ b/open-sse/config/providers/index.ts
@@ -122,6 +122,7 @@ import { blackbox_webProvider } from "./registry/blackbox/web/index.ts";
 import { uncloseaiProvider } from "./registry/uncloseai/index.ts";
 import { nscaleProvider } from "./registry/nscale/index.ts";
 import { chatgpt_web_codexProvider } from "./registry/chatgpt-web-codex/index.ts";
+import { chatgpt_sessionProvider } from "./registry/chatgpt-session/index.ts";
 import { openrouterProvider } from "./registry/openrouter/index.ts";
 import { cheaperinferenceProvider } from "./registry/cheaperinference/index.ts";
 import { openvectaProvider } from "./registry/openvecta/index.ts";
@@ -388,6 +389,7 @@ export const REGISTRY: Record<string, RegistryEntry> = {
   uncloseai: uncloseaiProvider,
   nscale: nscaleProvider,
   "chatgpt-web-codex": chatgpt_web_codexProvider,
+  "chatgpt-session": chatgpt_sessionProvider,
   openrouter: openrouterProvider,
   cheaperinference: cheaperinferenceProvider,
   openvecta: openvectaProvider,
diff --git a/open-sse/config/providers/registry/chatgpt-session/index.ts b/open-sse/config/providers/registry/chatgpt-session/index.ts
new file mode 100644
index 0000000000..e00b5cc576
--- /dev/null
+++ b/open-sse/config/providers/registry/chatgpt-session/index.ts
@@ -0,0 +1,27 @@
+import type { RegistryEntry } from "../../shared.ts";
+
+const SESSION_CAPABILITIES = {
+  toolCalling: true,
+  supportsReasoning: true,
+  supportsVision: false,
+} as const;
+
+export const chatgpt_sessionProvider: RegistryEntry = {
+  id: "chatgpt-session",
+  alias: "cgpt-session",
+  format: "openai",
+  executor: "chatgpt-session",
+  baseUrl: "https://chatgpt.com",
+  reasoningTransport: "opaque",
+  authType: "apikey",
+  authHeader: "cookie",
+  models: [
+    { id: "luna", name: "ChatGPT Session — Luna", ...SESSION_CAPABILITIES },
+    { id: "think", name: "ChatGPT Session — Think", ...SESSION_CAPABILITIES },
+    { id: "instant", name: "ChatGPT Session — Instant", ...SESSION_CAPABILITIES },
+    { id: "medium", name: "ChatGPT Session — Medium", ...SESSION_CAPABILITIES },
+    { id: "high", name: "ChatGPT Session — High", ...SESSION_CAPABILITIES },
+    { id: "extra-high", name: "ChatGPT Session — Extra High", ...SESSION_CAPABILITIES },
+    { id: "pro", name: "ChatGPT Session — Pro", ...SESSION_CAPABILITIES },
+  ],
+};
diff --git a/open-sse/executors/index.ts b/open-sse/executors/index.ts
index fbe9940d80..76c6873ce3 100644
--- a/open-sse/executors/index.ts
+++ b/open-sse/executors/index.ts
@@ -48,6 +48,10 @@ const lazyExecutors: Record<string, () => Promise<BaseExecutor>> = {
     import("./chatgpt-web-codex.ts").then((m) => new m.ChatGptWebCodexExecutor()),
   "cgpt-codex": () =>
     import("./chatgpt-web-codex.ts").then((m) => new m.ChatGptWebCodexExecutor()),
+  "chatgpt-session": () =>
+    import("./chatgpt-session.ts").then((m) => new m.ChatGptSessionExecutor()),
+  "cgpt-session": () =>
+    import("./chatgpt-session.ts").then((m) => new m.ChatGptSessionExecutor()),
   cursor: () => import("./cursor.ts").then((m) => new m.CursorExecutor()),
   trae: () => import("./trae.ts").then((m) => new m.TraeExecutor()),
   glm: () => import("./glm.ts").then((m) => new m.GlmExecutor("glm")),
diff --git a/tests/snapshots/executors/executor-map.json b/tests/snapshots/executors/executor-map.json
index 3f72a8282b..7bd58b8ae8 100644
--- a/tests/snapshots/executors/executor-map.json
+++ b/tests/snapshots/executors/executor-map.json
@@ -90,6 +90,16 @@
       "configSource": "<custom-config>",
       "provider": "chatgpt-web-codex"
     },
+    "cgpt-session": {
+      "className": "ChatGptSessionExecutor",
+      "configSource": "<custom-config>",
+      "provider": "chatgpt-session"
+    },
+    "chatgpt-session": {
+      "className": "ChatGptSessionExecutor",
+      "configSource": "<custom-config>",
+      "provider": "chatgpt-session"
+    },
     "chatgpt-web-codex": {
       "className": "ChatGptWebCodexExecutor",
       "configSource": "<custom-config>",
@@ -666,6 +676,6 @@
       "provider": "zai-web"
     }
   },
-  "keyCount": 133,
+  "keyCount": 135,
   "sharedInstances": []
 }
diff --git a/tests/snapshots/provider/translate-path.json b/tests/snapshots/provider/translate-path.json
index d00eb4488a..b1cce4b62c 100644
--- a/tests/snapshots/provider/translate-path.json
+++ b/tests/snapshots/provider/translate-path.json
@@ -842,6 +842,29 @@
       "stream": "https://api.chatanywhere.org/v1/chat/completions"
     }
   },
+  "chatgpt-session": {
+    "format": "openai",
+    "headers": {
+      "apiKey": {
+        "Accept": "text/event-stream",
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      },
+      "nonStream": {
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      },
+      "oauth": {
+        "Accept": "text/event-stream",
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      }
+    },
+    "url": {
+      "nonStream": "https://chatgpt.com",
+      "stream": "https://chatgpt.com"
+    }
+  },
   "chatgpt-web-codex": {
     "format": "openai-responses",
     "headers": {
diff --git a/tests/unit/chatgpt-session-registry.test.ts b/tests/unit/chatgpt-session-registry.test.ts
new file mode 100644
index 0000000000..d707d70e10
--- /dev/null
+++ b/tests/unit/chatgpt-session-registry.test.ts
@@ -0,0 +1,35 @@
+import { test } from "node:test";
+import assert from "node:assert/strict";
+
+import { REGISTRY } from "../../open-sse/config/providerRegistry.ts";
+import { CHATGPT_SESSION_ROUTE_IDS } from "../../open-sse/executors/chatgpt-session/models.ts";
+import {
+  RETIRED_COMMON_CHATGPT_WEB_PROVIDER_IDS,
+  isCommonChatGptWebRetiredProviderId,
+} from "../../src/shared/constants/chatgptWebRetirement.ts";
+
+test("the registry exposes chatgpt-session with its seven routes", () => {
+  const entry = REGISTRY["chatgpt-session"];
+  assert.ok(entry, "chatgpt-session must be registered");
+  assert.equal(entry.alias, "cgpt-session");
+  assert.equal(entry.format, "openai");
+  assert.equal(entry.executor, "chatgpt-session");
+  assert.deepEqual(
+    entry.models.map((model) => model.id),
+    [...CHATGPT_SESSION_ROUTE_IDS]
+  );
+});
+
+test("the new ids are not the retired ones", () => {
+  assert.equal(isCommonChatGptWebRetiredProviderId("chatgpt-session"), false);
+  assert.equal(isCommonChatGptWebRetiredProviderId("cgpt-session"), false);
+  assert.deepEqual([...RETIRED_COMMON_CHATGPT_WEB_PROVIDER_IDS], ["chatgpt-web", "cgpt-web"]);
+});
+
+test("both executor aliases resolve to the session executor", async () => {
+  const { getExecutor } = await import("../../open-sse/executors/index.ts");
+  for (const id of ["chatgpt-session", "cgpt-session"]) {
+    const executor = await getExecutor(id);
+    assert.equal(executor.getProvider(), "chatgpt-session");
+  }
+});