L Models Best vision
GPT-5.1 Chat
by OpenAI
GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning
GC
Models
GPT-5.1 Chat
Added 10 July 2026
#openai
Overview
GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...
How to use / API access
Call via OpenRouter with model id `openai/gpt-5.1-chat`.
- openrouter ·
openai/gpt-5.1-chatDocs
OpenRouter id: openai/gpt-5.1-chat
Notes
GPT-5.1 Chat is listed in the EDNA Models directory from the OpenRouter catalogue.