V0 doesn't work!

[heymaaz]

Description

using v0 API Key always fails with:

 error=[
  {
    "expected": "string",
    "code": "invalid_type",
    "path": [
      "finish"
    ],
    "message": "Invalid input: expected string, received object"
  }
]

OpenCode version

1.0.207

Steps to reproduce

1. opencode serve --print-logs
2. in another terminal
   export V0_API_KEY={YOUR-V0-API-KEY}
opencode attach http://127.0.0.1:{Your-port}
   type hi!

Screenshot and/or share link

v0 fail logs.txt

Operating System

macOS 26.2

Terminal

macOS Terminal

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• All Mistral models fail with ZodError: "finish" expected string, received object #5981: All Mistral models fail with ZodError: "finish" expected string, received object
• Mistral provider fails: auto-install ENOENT + ZodError on streaming responses (Homebrew install) #5997: Mistral provider fails with ZodError on streaming responses

Both issues show the same error pattern where the API is returning an object for the "finish" field instead of a string. This appears to be a validation issue with how OpenCode handles different provider response formats.

Feel free to ignore if your specific case with V0 API Key differs from these Mistral-related issues.

[OpeOginni]

@rekram1-node this looks a lot like this issue, I can make a fix related to yours here

[rekram1-node]

yes plz!