GPT-5.3 Codex
by OpenAI · gpt-codex family · released 2026-02-05
On output pricing, GPT-5.3 Codex is cheaper than 90 of the 588 priced models tracked here, at $14/Mtok. Its 400,000-token context window is larger than 538 of 674 models. Capabilities: vision, tools, reasoning, structured output.
Specifications
| Provider | OpenAI |
| Family | gpt-codex |
| Input price | $1.75/Mtok |
| Output price | $14/Mtok |
| Cache read price | $0.175/Mtok |
| Context window | 400,000 |
| Max output tokens | 128,000 |
| Input modalities | text, image, pdf |
| Output modalities | text |
| Capabilities | vision, tools, reasoning, structured output |
| Knowledge cutoff | 2025-08-31 |
| Released | 2026-02-05 |
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