Codex Class Reference

Constructor

Codex(options: CodexOptions | Mapping[str, object] | None = None)

options fields

• codex_path_override: str | None
• base_url: str | None
• api_key: str | None
• config: dict[str, CodexConfigValue] | None
• env: dict[str, str] | None

Methods

start_thread(options=None) -> Thread

Starts a new thread.

resume_thread(thread_id, options=None) -> Thread

Resumes a thread by id.

Compatibility aliases

• startThread(...)
• resumeThread(...)

Example

from codex_sdk import Codex

codex = Codex({"base_url": "https://example", "api_key": "token"})
thread = codex.start_thread({"model": "gpt-5"})