GPT-5.2 Codex
| Released | 2025-12-11 |
|---|---|
| Price per 1M | $1.75 in · $14.00 out |
| Overall score | 55.0 · rank 75 |
| Context window | 400,000 tokens |
| Provider | OpenAI |
| Weights | Proprietary |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 55.0 | 75 | 5 |
| Overall: Coding | 54.5 | 76 | 5 |
| Overall: Agentic work | 55.7 | 74 | 3 |
| Overall: Frontend | 51.3 | 78 | 4 |
| Coding | 55.4 | 66 | 2 |
| Agents | 55.9 | 70 | 1 |
| Frontend | 49.2 | 76 | 2 |
| Value vs price | +2.5 | 101 |
Configurations
| Configuration | Balanced | Benchmarks |
|---|---|---|
| Unspecified setting | 55.8 ±4.2 | 3 |
| High | 52.7 ±5.6 | 2 |
Evidence
Coding 55.4 ±3.3
| Benchmark | Result | Source | Date |
|---|---|---|---|
| SWE-bench Verified (Vals run) | 72.4% | Vals AI | 2026-09-01 |
| LiveCodeBench (Vals run) | 88.0% | Vals AI | 2026-09-01 |
Agents 55.9 ±2.5
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Terminal-Bench 2.0 | 66.5% | Epoch AI | 2026-01-14 |
Frontend 49.2 ±0.7
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Vibe Code Bench v1.1 | 37.9% | Vals AI | 2026-11-09 |
| LMArena WebDev | 1,338 | LMArena | 2026-11-09 |
Names matched to this model
gpt-5-2-codex