GPT-5.2 vs GPT-5.3-Codex
Both have similar output pricing. Choose GPT-5.2 or GPT-5.3-Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.2 | GPT-5.3-Codex |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $1.75 | $1.75 |
| Output / 1M tokens | $14.00 | $14.00 |
| Context window | 400K | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Dec 2025 | Feb 2026 |
| LiveBench score | 75.4 | 73.2 |
| SWE-bench Verified score | 72.8 | — |
| SWE-bench Multilingual score | 66.7 | — |
| LMArena (Chatbot Arena) Elo score | 1416 | — |
| LMArena WebDev Elo score | 1417 | 1406 |
| LMArena Vision Elo score | 1246 | — |
| GPQA Diamond score | 91.4 | — |
| FrontierMath score | 40.7 | — |
| Epoch Capabilities Index score | 153 | 157 |
FAQ
Is GPT-5.2 or GPT-5.3-Codex cheaper?
GPT-5.2 and GPT-5.3-Codex have comparable output pricing.
Which has the larger context window, GPT-5.2 or GPT-5.3-Codex?
Both models offer a similar context window.
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.