AlphaZero vs GPT-5.3-Codex
DeepMind vs OpenAI — benchmarks, pricing, and capabilities side by side.
| AlphaZero | GPT-5.3-Codex | |
|---|---|---|
| Intelligence index | — | 91.5 |
| Developer | DeepMind | OpenAI |
| Type | — | Multimodal |
| Access | — | API only |
| Context window | — | 400,000 tokens |
| Input price | — | $1.75 / 1M |
| Output price | — | $14.00 / 1M |
| Speed | — | 73 tok/s |
| Released | December 5, 2017 | February 24, 2026 |
| Parameters | — | — |
| Input modalities | — | Text, Image |
| Output modalities | — | Text |