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GPT-5.1

Multimodalby OpenAI·Model page

OpenAI's multimodal model with image, text, and file input and a 400K-token context.

Max output

Most tokens the model can return in a single response.

128Ktokens
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Design Arena

Design Arena ranks models on real-world front-end and design tasks — websites, UI components, data viz, SVG and more — through head-to-head human votes, scored as an ELO rating.
CategoryELOWin rateRank
Data viz122258.0%#43
Game dev120555.9%#45
Website120154.0%#57
Code118853.0%#58
UI component118852.9%#57

Pricing

per 1M tokens
Input$1.25 /1M
Output$10 /1M
Cache read$0.125 /1M
Web search$0.01

Model Description

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...

Author
O
OpenAI
Organization · ✓
openai
Details
Downloads
Likes
AccessClosed Source
Context400K tokens
Input price$1.25 /1M
Output price$10 /1M
CreatedNov 13, 2025
Updated
View on Hugging Face
Benchmarks
Coding49.4
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GPT-5.1 — AI Model Details | Applied