GPT-5.1 (batch) reasoning

openrouter
openai
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...

Capabilities

Context Window 400k tokens
Max Output 128k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $0.62
Output $5.00
Cache Read $0.06
Cache Write -

Supported Parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Move Chat

Select a destination folder:

Move Folder

Select a parent folder:

Folder Settings