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gpt-oss-20B (low)

OpenAI

ReasoningApache 2.0

Analysis of OpenAI's gpt-oss-20B (low) 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
Aug 05, 2025
Knowledge Cutoff
May 31, 2025
Window
131k

PricingPer 1M tokens

Input
$0.06
Output
$0.2
Blended 3:1
$0.095

Capabilities

Speed
226 t/s
Input
Output
Reasoning tokens

Latency

TTFT
0.81 ms
500 token response
11.86 s

Benchmarks

Reasoning
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Math
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Coding
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MMLU Pro
71.8%
GPQA
61.1%
HLE
5.1%
SciCode
34.0%
AIME
62.3%
LiveCodeBench
65.2%

Analysis of OpenAI's gpt-oss-20B (low) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.