Files
codex/sdk/python
Abhinav c5ef97aa89 Add default model provider selection to the app server (#61397)
## What changed

Add `modelProvider/default/set` with a `providerId` parameter to persist the default provider for new threads and model lists. Return `ConfigWriteResponse`, reject unconfigured providers, and respect managed requirements, read-only configuration, and CLI overrides.

Reload the model catalog on its next read when the default changes effectively. Resolve explicit `model/list` provider selections against the current catalog configuration so clients can continue listing models for a retained provider after switching defaults.

Update the protocol schemas, generated TypeScript and Python types, and app-server documentation.

## Testing

Add coverage for switching defaults and switching back, rejecting unknown providers without changing the catalog, retaining explicit provider selections, reporting CLI overrides, and rejecting writes blocked by configuration restrictions.

GitOrigin-RevId: 3615835f58045d33a21b3c57d47932d6d1e3fb12
2026-11-13 23:04:26 +00:00
..

OpenAI Codex Python SDK

Build Python applications that start Codex threads, run turns, stream progress, and control workspace access.

Install

Install the SDK:

pip install openai-codex

Quickstart

The SDK reuses your existing Codex authentication when one is already available:

from openai_codex import Codex

with Codex() as codex:
    thread = codex.thread_start()
    result = thread.run("Explain this repository in three bullets.")
    print(result.final_response)

thread.run(...) returns a TurnResult containing the final response, collected items, and token usage.

Authentication

Existing Codex authentication is reused automatically. To start ChatGPT browser login explicitly:

from openai_codex import Codex

with Codex() as codex:
    login = codex.login_chatgpt()
    print(login.auth_url)
    print(login.wait().success)

For device-code login:

with Codex() as codex:
    login = codex.login_chatgpt_device_code()
    print(login.verification_url, login.user_code)
    login.wait()

For API-key login:

with Codex() as codex:
    codex.login_api_key("sk-...")

Built-In Help

Use Python's standard help(openai_codex), help(Codex), or python -m pydoc openai_codex documentation tools.

Documentation

The package is licensed under the repository Apache License 2.0.