# GPT-5.6 SolPromax

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Canonical URL: https://benchize.com/models/gpt-5-6-sol-promax
Last updated: Thu, 22 Oct 2026 06:30:09 GMT

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## Benchmarks

| Benchmark | Score | ± | Rank | Source |  |
| --- | --- | --- | --- | --- | --- |
| [Chess Puzzles](https://benchize.com/benchmarks/epoch-ai%3Achess_puzzles.md) | 68% | SE ±4.69 pp | 3 / 64 | [epoch ai · Chess Puzzles](https://epoch.ai/data/benchmark_data.zip#file=chess_puzzles.csv) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.68 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.68 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion Chess Puzzles reasoningBudget Not reported Reasoning effort promax sourceModelVersion gpt-5.6-sol_promax ### Reported statistics Uncertainty Standard error: ±4.69 pp standardError 0.04688261722621507 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=chess_puzzles.csv) Source epoch ai Original model label gpt-5.6-sol Source version Chess Puzzles Evaluated 2026-10-14T09:56:09.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `a5b99d6d35252907b04e9a802873a9754ecc0248be92a1ebbd2ef0450e4bb015` Source locator `/rows/9` |  |  |  |  |  |
| [FrontierMath Tier 4 v2 (private)](https://benchize.com/benchmarks/epoch-ai%3Afrontiermath_tier_4_v2.md) | 80.49% | SE ±6.27 pp | 13 / 39 | [epoch ai · FrontierMath-Tier-4-v2-Private](https://epoch.ai/data/benchmark_data.zip#file=frontiermath_tier_4_v2.csv) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.8048780487804879 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.8048780487804879 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion FrontierMath-Tier-4-v2-Private reasoningBudget Not reported Reasoning effort promax sourceModelVersion gpt-5.6-sol_promax ### Reported statistics Uncertainty Standard error: ±6.27 pp standardError 0.06265967111543964 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=frontiermath_tier_4_v2.csv) Source epoch ai Original model label gpt-5.6-sol Source version FrontierMath-Tier-4-v2-Private Evaluated 2026-07-09T20:34:41.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `2bbef8e82ac84071e3ce42bf744f4fc39dff04a549ccb1a288e3800918bc2e55` Source locator `/rows/39` |  |  |  |  |  |

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Cite as: GPT-5.6 SolPromax — Benchize, https://benchize.com/models/gpt-5-6-sol-promax (retrieved 2026-10-22)