Responses (OpenAI API reference)

https://platform.openai.com/docs/api-reference/responses

Chat (OpenAI API reference)からの移行先

Create a model response https://platform.openai.com/docs/api-reference/responses/create

model

instructions

A system (or developer) message inserted into the model's context.

input

Text, image, or file inputs to the model, used to generate a response.

tools

tool_choice

parallel_tool_calls

Defaults to true

reasoning

gpt-5 and o-series models only

stream

include

message.output_text.logprobs

reasoning.encrypted_content

Includes an encrypted version of reasoning tokens in reasoning item outputs. This enables reasoning items to be used in multi-turn conversations when using the Responses API statelessly

prompt_cache_key

Prompt caching (OpenAI Responses API)

text

Configuration options for a text response from the model. Can be plain text or structured JSON data.

temperature

Defaults to 1