Model dossier

OpenAI: GPT-5.1

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...

ProviderOpenAI Start comparison

Context400,000

Max output128,000

Pricing viewTVP price

Identity

OpenAI: GPT-5.1

Model ID: openai/gpt-5.1
Canonical slug: openai/gpt-5.1-20251113
Knowledge cutoff: n/a
Created: 11/13/2025

Capabilities

imagetextfiletoolsstructured

Modalities

text+image+file->textimagetextfile

Capacity

Context400,000

Max output128,000

TokenizerGPT