GPT-5.1 Codex Max
| Released | 2025-11-13 |
|---|---|
| Price per 1M | $1.25 in · $10.00 out |
| Overall score | 53.7 · rank 81 |
| Context window | 400,000 tokens |
| Provider | OpenAI |
| Weights | Proprietary |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 53.7 | 81 | 5 |
| Overall: Coding | 53.5 | 82 | 4 |
| Overall: Reasoning | 52.4 | 95 | 1 |
| Overall: Agentic work | 54.4 | 80 | 3 |
| Overall: Frontend | 49.2 | 96 | 2 |
| Coding | 55.4 | 68 | 1 |
| Agents | 54.1 | 80 | 2 |
| Math | 52.4 | 92 | 1 |
| Frontend | 46.1 | 85 | 1 |
| Value vs price | +2.2 | 104 |
Configurations
| Configuration | Balanced | Benchmarks |
|---|---|---|
| Unspecified setting | 54.1 ±5.4 | 2 |
| High | 53.5 ±5.1 | 3 |
Evidence
Coding 55.4 ±5.3
| Benchmark | Result | Source | Date |
|---|---|---|---|
| LiveCodeBench (Vals run) | 83.6% | Vals AI | 2026-09-01 |
Agents 54.1 ±1.8
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Terminal-Bench 2.0 | 60.5% | Epoch AI | 2025-11-19 |
| METR 50% Time Horizon | $224 | METR | 2026-11-11 |
| METR task suite | 70.8% | Epoch AI | 2026-11-11 |
Math 52.4 ±3.1
| Benchmark | Result | Source | Date |
|---|---|---|---|
| ProofBench | 9.0% | Epoch AI | 2026-11-11 |
Frontend 46.1 ±0.8
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Vibe Code Bench v1.1 | 22.2% | Vals AI | 2026-11-09 |
Names matched to this model
gpt-5-1-codex-max