GPT-5.1

Name: GPT-5.1
Author: OpenAI

Closed

GPT-5.1 is an AI model from OpenAI.

Publisher: OpenAI
Family: GPT
Context: 400K
Input
Output
Providers: openai
License: proprietary
Released: 13 Nov 2025

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Attribution

Benchmark scores: frontiermathAA LiveBench SWE-bench prime-hub Vals AI

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Context

400K

Input

$1.25

/1M tok

Output

$10

/1M tok

Blended

$3.44

#362/ 414/1M · 3:1

Speed

125

#86/ 414tok/s

Cache read

$0.13

0.10x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 28 evals across 12 domains - best 88.1% on MedScribe · #1 of 47

Reported eval scores

MedScribe88.1

MedCode52.7

LiveBench - Language79.3

LiveBench - Math86.9

LiveBench - Coding72.5

Terminal-Bench (Hard)22.7

LiveBench - Data Analysis69.6

LiveBench - Reasoning78.8

IFBench43.2

LiveBench - Instruction Following63.9

Traveling Salesman1

Infraresolutionbench81.9

Gpu Puzzles Modal81

LiveBench75.2

MMLU-Pro80.1

Humanity's Last Exam (HLE)5.2

TaxEval v274.9

CorpFin v263.8

MortgageTax61.4

FrontierMath31

SciCode36.5

GPQA Diamond64.3

LiveCodeBench49.4

SWE-bench Verified66

Vibe Code Bench v1.124.6

τ²-bench (Tau²-bench)46.5

SAGE43.2

AIME 2025: Problems from the American Invitational Mathematics Examination38