GPT-4.1 (batch) reasoning

openrouter
openai
GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

Capabilities

Context Window 1M tokens
Max Output 32k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $1.00
Output $4.00
Cache Read $0.25
Cache Write -

Supported Parameters

max_tokensresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_p