GPT-5.3 Codex High
| Released | 2026-02-05 |
|---|---|
| Price per 1M | $1.75 in · $14.00 out |
| Overall score | 54.9 (early, few results) |
| Context window | 400,000 tokens |
| Provider | OpenAI |
| Weights | Proprietary |
| Configuration | High |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 54.9 | 1 | |
| Overall: Coding | 54.9 | 1 | |
| Overall: Agentic work | 54.9 | 1 | |
| Overall: Frontend | 54.9 | 1 | |
| Coding | 54.9 | 1 | |
| Value vs price | +0.1 |
Evidence
Coding 54.9 ±4.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| SWE-bench Verified (Epoch run) | 74.8% | Epoch AI | 2026-02-25 |
Names matched to this model
gpt-5-3-codex-high