# GPT-5.3-Codex — price & specs

Source: https://modelbank.ai/models/gpt-5.3-codex · updated 2026-11-12 · ModelBank

| Field | Value |
|---|---|
| Vendor | OpenAI |
| Input price | $1.75 / 1M tokens |
| Output price | $14 / 1M tokens |
| Cached input | $0.17 / 1M tokens |
| Context window | 400,000 tokens |
| Max output | 128,000 tokens |
| Input modalities | text,image,file |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | — / — |
| Released | 2026-02-24 |
| Retirement date | none announced |

## About

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...

## Price history

- 2026-09-24: $1.75 in / $14 out


JSON: https://modelbank.ai/api/v1/models/gpt-5.3-codex