GPT-5.1 Instant

Published

Nov 13, 2025

GPT-5.1 Instant is an AI model developed by OpenAI (United States), first published in November 2025. It works in the multimodal, language and vision domain, on tasks such as language modeling/generation and question answering.

Epoch AI has no training-compute estimate for this model.

Access: API access. Its weights are not openly released.

Full record

Organization: OpenAI
Country of organization: United States
Domain: Multimodal, Language, Vision
Task: Language modeling/generation, Question answering
Model accessibility: API access
Open weights: No