About GPT-5.3 Chat
GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly...
Specifications
- Provider
- OpenAI
- Context Length
- 128,000 tokens
- Input Types
- text, image, file
- Output Types
- text
- Category
- openai/gpt-5.3-chat-20260303
- Added
- 3/3/2026