GPT 5.1 Codex Max

release date unknown

BenchAtlas Index

as of 2026-07-14

Not enough benchmark coverage for a composite score (needs ≥4 families across ≥3 categories). The per-benchmark evidence below stands on its own — sparse coverage is an evidence gap, not a low score.

Benchmark evidence

0 results

No bare-model results yet.

Agent + model results

systems, not bare-model scores

agent + model Codex CLI + GPT 5.1 Codex Max

Terminal-Bench 2.0

60.5 %

community

Terminal-Bench Leaderboard

These scores measure the whole agent system (scaffold, tools, budgets) — they are never merged into the bare model’s numbers.