GitHub Adds Model Selection for Claude and Codex Third-Party Coding Agents on github.com

GitHub Changelog·medium signal

As of April 14, developers can select specific models when assigning tasks to Claude and Codex coding agents directly on github.com — Anthropic models for Claude agent, OpenAI models for Codex agent. This is the first time GitHub has exposed model routing for third-party agents alongside its native Copilot, signaling a multi-vendor agent marketplace.