GPT-5-Codex
GPT-5-Codex is a GPT-5 family model specialized for autonomous software engineering, designed to operate as a coding agent that reads repositories, writes code, executes tests, and iterates on solutions in sandboxed environments.
File InputReasoningTool UseVision (Image)Implicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'openai/gpt-5-codex', prompt: 'Why is the sky blue?'})Providers
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
| Provider |
|---|
 Azure | 400K | 0.7s | 129tps | $1.25/M | $10.00/M | Read:$0.13/M Write:— | $14/K + input costs | — | +3 | 09/15/2025 | ||
 OpenAI | 400K | 0.6s | $1.25/M | $10.00/M | Read:$0.13/M Write:— | $10.00/K + input costs | — | +3 | 09/15/2025 |