GPT-5.1 (batch)

OpenAI· released 13 Nov 2025

openai/gpt-5.1:batch

Input / 1M tokens: $0.625
Output / 1M tokens: $5

Context window400K tokens

Longest answer: 128K tokens

reads imagereads textreads filetool callingvisionreasoning

About

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...

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 400Kopenrouter.ai · 3 Oct 2026
Input price: $0.625 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $5 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 128,000 tokensopenrouter.ai · 3 Oct 2026
Inputs: image, text, fileopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/openai/gpt-5.1:batch· checked 3 Oct 2026