# GPT-5.6 TerraNon-thinking

> Source: Benchize (https://benchize.com) — https://benchize.com/models/gpt-5-6-terra-off. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/gpt-5-6-terra-off.

OpenAI

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

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OpenAI

## Benchmarks

| Benchmark | Score | ± | Rank | Source |  |
| --- | --- | --- | --- | --- | --- |
| [GPQA Diamond](https://benchize.com/benchmarks/gpqa-diamond.md) | 77.27% | SE ±2.99 pp | 77 / 126 | [epoch ai · GPQA diamond](https://epoch.ai/data/benchmark_data.zip#file=gpqa_diamond.csv) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.7727272727272727 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.7727272727272727 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion GPQA diamond reasoningBudget Not reported Reasoning effort none sourceModelVersion gpt-5.6-terra_none ### Reported statistics Uncertainty Standard error: ±2.99 pp standardError 0.029857515673386438 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=gpqa_diamond.csv) Source epoch ai Original model label gpt-5.6-terra Source version GPQA diamond Evaluated 2026-08-07T00:50:06.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `9ef0b938bdd8406b029d595983ee8ad3a80bd9d64b82605b91b5ce39ba650c39` Source locator `/rows/75` |  |  |  |  |  |
| [Mystery Game Puzzles](https://benchize.com/benchmarks/epoch-ai%3Amystery_game_puzzles.md) | 14% | SE ±3.49 pp | 55 / 72 | [epoch ai · Mystery Game Puzzles](https://epoch.ai/data/benchmark_data.zip#file=mystery_game_puzzles.csv) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.14 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.14 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion Mystery Game Puzzles reasoningBudget Not reported Reasoning effort none sourceModelVersion gpt-5.6-terra_none ### Reported statistics Uncertainty Standard error: ±3.49 pp standardError 0.0348735088019777 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=mystery_game_puzzles.csv) Source epoch ai Original model label gpt-5.6-terra Source version Mystery Game Puzzles Evaluated 2026-08-27T18:00:41.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `f66941ed5e9520190b66af57d2b6fd62a9582077dd25ab8764ce651bc0eca00a` Source locator `/rows/78` |  |  |  |  |  |
| [OTIS Mock AIME 2024–2025](https://benchize.com/benchmarks/epoch-ai%3Aotis_mock_aime_2024_2025.md) | 53.33% | SE ±7.52 pp | 89 / 124 | [epoch ai · OTIS Mock AIME 2024-2025](https://epoch.ai/data/benchmark_data.zip#file=otis_mock_aime_2024_2025.csv) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.5333333333333333 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.5333333333333333 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion OTIS Mock AIME 2024-2025 reasoningBudget Not reported Reasoning effort none sourceModelVersion gpt-5.6-terra_none ### Reported statistics Uncertainty Standard error: ±7.52 pp standardError 0.07521014330903548 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=otis_mock_aime_2024_2025.csv) Source epoch ai Original model label gpt-5.6-terra Source version OTIS Mock AIME 2024-2025 Evaluated 2026-08-07T00:42:38.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `b7c9da8c0587c82f1e0d814ceb496c24308380b997a16203b6e5d39eb07f4f50` Source locator `/rows/83` |  |  |  |  |  |
| [Chess Puzzles](https://benchize.com/benchmarks/epoch-ai%3Achess_puzzles.md) | 5% | SE ±2.19 pp | 62 / 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` \| 0.05 \| score_fraction \| Best score (across scorers) \| Higher is better \| \| `mean_score` \| 0.05 \| score_fraction \| mean_score \| Higher is better \| ### Configuration benchmarkVersion Chess Puzzles reasoningBudget Not reported Reasoning effort none sourceModelVersion gpt-5.6-terra_none ### Reported statistics Uncertainty Standard error: ±2.19 pp standardError 0.02190429135575903 ### Source [Original source](https://epoch.ai/data/benchmark_data.zip#file=chess_puzzles.csv) Source epoch ai Original model label gpt-5.6-terra Source version Chess Puzzles Evaluated 2026-10-13T13:50:17.000Z Observed 2026-10-22T03:00:05.281Z Evidence SHA-256 `a5b99d6d35252907b04e9a802873a9754ecc0248be92a1ebbd2ef0450e4bb015` Source locator `/rows/76` |  |  |  |  |  |

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Cite as: GPT-5.6 TerraNon-thinking — Benchize, https://benchize.com/models/gpt-5-6-terra-off (retrieved 2026-10-22)