Codex vs DeepSeek-V4-Flash
OpenAI vs DeepSeek — benchmarks, pricing, and capabilities side by side.
| Codex | DeepSeek-V4-Flash | |
|---|---|---|
| Intelligence index | — | 89.4 |
| Developer | OpenAI | DeepSeek |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | — | 1,048,576 tokens |
| Input price | — | $0.10 / 1M |
| Output price | — | $0.20 / 1M |
| Speed | — | 109 tok/s |
| Released | August 10, 2021 | April 24, 2026 |
| Parameters | — | 284B (13B active) |
| Input modalities | Text | Text |
| Output modalities | Text | Text |