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GPT-5.1 (high)

OpenAI

ReasoningVision ModelProprietary

Analysis of OpenAI's GPT-5.1 (high) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.

Context

Release Date
Nov 13, 2025
Knowledge Cutoff
Sep 30, 2024
Window
272k

PricingPer 1M tokens

Input
$1.25
Output
$10
Blended 3:1
$3.4375

Capabilities

Speed
131 t/s
Input
Output
Reasoning tokens

Latency

TTFT
31.91 ms
500 token response
35.73 s

Benchmarks

Reasoning
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Math
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Coding
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MMLU Pro
87.0%
GPQA
87.3%
HLE
26.5%
SciCode
43.3%
AIME
94.0%
LiveCodeBench
86.8%

Analysis of OpenAI's GPT-5.1 (high) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.