GPT-5.3-Codex
openai/gpt-5.3-codex
- context
- 400K
- modalities
- text, image, file → text
- capabilities
- Tool use, Reasoning, Vision, Structured output, Long context
Overview
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...
Providers
- AzureView Azure
- OpenAIView OpenAI
Access method depends on provider and account setup.
Pricing
| provider | input / 1M | output / 1M |
|---|---|---|
| Azure | $1.75 | $14.00 |
| OpenAIopenai | $1.75 | $14.00 |
| OpenAIopenai/fast | $3.50 | $28.00 |
Azure
- input / 1M
- $1.75
- output / 1M
- $14.00
OpenAI
openai
- input / 1M
- $1.75
- output / 1M
- $14.00
OpenAI
openai/fast
- input / 1M
- $3.50
- output / 1M
- $28.00
Use this model
through Nautili
Route requests to GPT-5.3-Codex through your Nautili gateway using a supported SDK or the Nautili SDK.
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