Codex Mini
Codex Mini is OpenAI's lightweight coding agent model optimized for fast, asynchronous software engineering tasks like writing features, fixing bugs, and running tests in sandboxed cloud environments.
ReasoningVision (Image)File InputTool UseImplicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'openai/codex-mini', prompt: 'Why is the sky blue?'})More models by OpenAI
| Model |
|---|
| 1M | 3.4s | 111tps | $5.00/M | $30.00/M | Read: $0.5/M Write: — | $10.00/K + input costs | — |   | 04/24/2026 | ||||
| 400K | 2.5s | 255tps | $0.75/M | $4.50/M | Read:$0.07/M Write:— | $10.00/K + input costs | — | | 03/17/2026 | ||||
| 400K | 0.6s | 120tps | $0.20/M | $1.25/M | Read:$0.02/M Write:— | $10.00/K + input costs | — | | 03/17/2026 | ||||
| 1.1M | 0.6s | 60tps | $2.50/M | $15.00/M | Read: $0.25/M Write: — | $10.00/K + input costs | — | | 03/05/2026 | ||||
| 128K | 0.7s | 90tps | $1.25/M | $10.00/M | Read:$0.13/M Write:— | $10.00/K + input costs | — | | 11/12/2025 | ||||
| 131K | 0.1s | 269tps | $0.35/M | $0.75/M | Read:$0.25/M Write:— | — | — |    +5 | 08/05/2025 |