OpenAI: GPT Chat Latest
openai/gpt-chat-latest- Modalities
- text+image+file->text
- In / out price
- $5 / $30
- Context
- 400K
- Released
- May 5, 2026
- Knowledge cutoff
- —
per 1M
GPT Chat Latest points to OpenAI's stable API alias chat-latest that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...
VisionToolsStructured outputLong context
Supported parameters
max_tokensMax tokens
Upper bound on generated tokens. Output stops at the limit.
response_formatResponse format
For example json_object or json_schema, to constrain the shape.
seedSeed
A fixed seed helps reproduce sampling. It does not guarantee byte-identical output.
structured_outputsStructured outputs
Generate a parseable structure that follows a JSON Schema.
tool_choiceTool choice
Whether to call a tool: auto, none, or a named function.
toolsTools
Function definitions the model may call via tool_calls.