GPT-5.1 (medium)
ModelActiveby OpenAI · family “gpt-medium”
Epoch Capabilities Index
Not scored by Epoch AI
Released
13 Nov 2025
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Input $ / 1M tokens
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Output $ / 1M tokens
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Cached input $ / 1M
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Each benchmark shown separately with its own source
Benchmark results (9)
| Benchmark | Domain | Score | vs best recorded | Setting | Run | Source |
|---|---|---|---|---|---|---|
| Mystery Game Puzzles | games | 16.0% ±3.7 | 19% | medium | 27 Aug 2026 | Epoch ↗ |
| FrontierMath-Tier-4-2025-07-01-Privatesuperseded | math | 4.2% ±2.9 | 9% | medium | 17 Nov 2025 | Epoch ↗ |
| Terminal Bench | agents | 47.6% ±2.8 | 56% | agent: Terminus 2 | 16 Nov 2025 | External ↗ |
| ARC-AGI-2 | reasoning | 6.5% | 7% | medium | — | External ↗ |
| FrontierMath-2025-02-28-Privatesuperseded | math | 26.9% ±2.6 | 51% | medium | 17 Nov 2025 | Epoch ↗ |
| VPCT | multimodal | 53.3% | 59% | medium | — | External ↗ |
| OTIS Mock AIME 2024-2025 | math | 85.6% ±4.4 | 86% | medium | 17 Nov 2025 | Eval log ↗ |
| GPQA diamond | science | 85.0% ±2.1 | 89% | medium | 17 Nov 2025 | Eval log ↗ |
| ARC-AGI | reasoning | 57.7% | 59% | medium | — | External ↗ |
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
API list price over time
Price history
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Events
- Benchmark33d agoEpoch AI evaluates GPT-5.1 (medium)Epoch AI Benchmarking Hub
- Model launch11mo agoOpenAI releases GPT-5.1 (medium)Epoch AI Benchmarking Hub