MultimodalAPI only
GPT-5.1-Codex
OpenAI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Specifications
- Type
- Multimodal
- Access
- API only
- Released
- November 13, 2025
- Context window
- 400,000 tokens
- Output speed
- 188 tok/s
- Latency (TTFT)
- 4.16s
- Input
- Text, Image
- Output
- Text
- API pricing
- $1.25 in · $10.00 out / 1M tokens
Capabilities
Function callingStructured outputWeb search