What the evidence says
- Developer
- OpenAI
- Released
- November 13, 2025
- Domains
- Multimodal · Language · Vision
- Tasks
- Language modeling/generation · Question answering
- Access
- API access
- Weights
- Closed weights
Common questions
What is GPT-5.1 Instant?
GPT-5.1 Instant is a OpenAI model released November 13, 2025, according to Epoch AI's reviewed catalog record. The record classifies it under multimodal, language, vision.
How does GPT-5.1 Instant rank on LMArena?
No board Model Gauntlet mirrors currently lists this exact model revision under a reviewed identity, so no rating is reported here.
What does GPT-5.1 Instant cost?
No reviewed source carries pricing for this record, so no price is reported here.