MultimodalAPI only
GPT-5.5 Pro
OpenAI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Specifications
- Type
- Multimodal
- Access
- API only
- Released
- April 24, 2026
- Context window
- 1,050,000 tokens
- Knowledge cutoff
- December 1, 2025
- Input
- Image, Text
- Output
- Text
- API pricing
- $30.00 in · $180.00 out / 1M tokens
Capabilities
Function callingStructured outputWeb search