OpenAI Codex Caught Using Claude for Sub-Agents

Developers discovered that OpenAI's Codex uses Anthropic's Claude model to launch its sub-agents. This amusing cross-vendor nesting highlights the unexpected flexibility and chaotic nature of current AI coding tools.

2026-08-12 ~ 2026-08-12 · 2 related posts

• Developer Finds OpenAI Codex Uses `claude -p` to Spawn Sub-Agents — cramforce · 2026-08-12

1 near-duplicate retellings: cramforce