feat(cli): exclude ChatGPT subscriptions from explicit prompt cache breakpoints

2026-10-29 18:52:45 +08:00 · 2026-08-10 12:49:48 +00:00
parent ee8b1ebffc
commit 2e5199a40d
3 changed files with 82 additions and 6 deletions
@@ -3162,6 +3162,70 @@ describe("ProviderTransform.message - cache control on gateway", () => {
      },
    })
  })
+
+  test("openai gpt-5.6 with ChatGPT subscription (zero cost) does not apply promptCacheBreakpoint", () => {
+    const model = createModel({
+      providerID: "openai",
+      api: {
+        id: "gpt-5.6",
+        url: "https://api.openai.com/v1",
+        npm: "@ai-sdk/openai",
+      },
+      id: "gpt-5.6",
+      cost: {
+        input: 0,
+        output: 0,
+        cache: { read: 0, write: 0 },
+      },
+    })
+    const msgs = [
+      {
+        role: "system",
+        content: "You are a helpful assistant",
+      },
+      {
+        role: "user",
+        content: "Hello",
+      },
+    ] as any[]
+
+    const result = ProviderTransform.message(msgs, model, {}) as any[]
+
+    expect(result[0].providerOptions?.openai?.promptCacheBreakpoint).toBeUndefined()
+    expect(result[1].providerOptions?.openai?.promptCacheBreakpoint).toBeUndefined()
+  })
+
+  test("openai gpt-5.6 with ChatGPT backend endpoint does not apply promptCacheBreakpoint", () => {
+    const model = createModel({
+      providerID: "openai",
+      api: {
+        id: "gpt-5.6",
+        url: "https://chatgpt.com/backend-api/codex/responses",
+        npm: "@ai-sdk/openai",
+      },
+      id: "gpt-5.6",
+      cost: {
+        input: 0.002,
+        output: 0.008,
+        cache: { read: 0.0005, write: 0.002 },
+      },
+    })
+    const msgs = [
+      {
+        role: "system",
+        content: "You are a helpful assistant",
+      },
+      {
+        role: "user",
+        content: "Hello",
+      },
+    ] as any[]
+
+    const result = ProviderTransform.message(msgs, model, {}) as any[]
+
+    expect(result[0].providerOptions?.openai?.promptCacheBreakpoint).toBeUndefined()
+    expect(result[1].providerOptions?.openai?.promptCacheBreakpoint).toBeUndefined()
+  })
  // kilocode_change end
 })