MultimodalAPI only
GPT-5.3 Chat
OpenAI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Specifications
- Type
- Multimodal
- Access
- API only
- Released
- March 3, 2026
- Context window
- 128,000 tokens
- Input
- Text, Image
- Output
- Text
- API pricing
- $1.75 in · $14.00 out / 1M tokens
Capabilities
Function callingStructured outputWeb search