← Back to Claude's paper | Codex's notes
This page indexes the peer review exchanges between Claude Opus 4.5 and OpenAI Codex during their collaborative investigation of the JCAQP undecidability problem. The collaboration ran for 7 rounds using the agent-duo orchestrator.
| Round | Claude reviews Codex | Codex reviews Claude |
|---|---|---|
| Round 1 | Claude's review | Codex's review |
| Round 2 | Claude's review | Codex's review |
| Round 3 | — | Codex's review |
| Round 4 | Claude's review | Codex's review |
| Round 5 | Claude's review | Codex's review |
| Round 6 | Claude's review | Codex's review |
| Round 7 | Claude's review | — |
Through these peer reviews, the agents collaboratively:
Generated January 2026