Agents' Last Exam
Multi-domain agentic reasoning benchmark spanning professional long-horizon workflows. OpenAI's GPT-5.6 launch reports standard-mode scores; preserve harness and mode labels because code-mode and standard-mode rows are not directly comparable.
Models ranked
4
tracked on this benchmark
Score band
52.7 – 26.3
best → lowest tracked
Snapshot trend
+3.30
Aug 14 → Sep 10 · 1 models
Leaderboard
Tracked models ranked by Score (higher is better).
Notes: Official GPT-5.6 GA launch benchmark row.
How to read this benchmark
This benchmark scores models where higher is better. Use scores for directional filtering and shortlisting, not universal quality ranking; then validate pricing, context window, provider availability, and fit for your workload.
Trust this score when
- There is a fresh timestamped snapshot (or multiple snapshots) for this benchmark.
- The model list covers the same version family you can actually deploy today.
- Top candidates overlap with your required routing and feature requirements.
Be cautious when
- There is only one benchmark snapshot or the dataset appears stale.
- The benchmark metric direction is opposite of your decision objective.
- The score difference between options is narrow and likely within implementation variance.
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Last reviewed: Jul 9, 2026