FrontierMath Tier 4
FrontierMath Tier 4 research-mathematics benchmark tier for frontier reasoning models. In this datapack only GPT-5.5 Pro has a sourced score; no Claude Opus 4.8 score was found.
Models ranked
1
tracked on this benchmark
Score band
39.6 – 39.6
best → lowest tracked
Snapshot trend
—
need ≥2 snapshots
Leaderboard
Tracked models ranked by Accuracy (higher is better).
Notes: One of the explicitly Pro-differentiated scores. No Claude Opus 4.8 FrontierMath Tier 4 score was found, so this is GPT-only evidence.
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.
Related benchmarks
Last reviewed: Jun 17, 2026