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
- Type
- Vendor / proprietary
- Modality
- text+image+file->text
- Context window
- 128K
- Released
- March 3, 2026
Capabilities
Input: textInput: imageInput: fileOutput: text
Strengths
max_completion_tokensmax_tokensresponse_formatseedstructured_outputstool_choicetools
