Back

OpenAI

gpt-oss-20b

ReasoningOpen weightsHugging Face
Intelligence
10.0
Rank 424 of 744 measured models
Output speed
309 t/s
Rank 10 of 403 measured models
Price/1M
$0.106
Rank 96 of 659 measured models
Context window
131K
Rank 738 of 1199 measured models

gpt-oss-20b (Low) scores 10.0 on the Artificial Analysis Intelligence Index, ranking 424th of 744 measured models. The closest models on this index are MiniMax M1 40k (10.0), Nova 2.0 Pro Preview (10.0), and Gemini 2.5 Flash (9.9). At $0.106 per million tokens (3:1 input/output blended price), it is cheaper than Nova 2.0 Pro Preview ($3.78) and Gemini 2.5 Flash ($0.85). With an output speed of 309 t/s, it is faster than Nova 2.0 Pro Preview (106 t/s) and Gemini 2.5 Flash (203 t/s).

Artificial Analysis Indices
Low
Intelligence10.0
Rank 424 of 744 measured models
Math62.3
Rank 114 of 270 measured models
Reasoning levels
Each point is a reasoning level of this model: more reasoning often raises the score but costs more. Select a point to open that level.
Intelligence Indexmost efficient ↗Price / 1M tokens
Standard Benchmarks
MMLU Pro71.8%
Rank 210 of 349 measured models
GPQA Diamond61.1%
Rank 398 of 619 measured models
HLE5.3%
Rank 455 of 664 measured models
LiveCodeBench65.2%
Rank 96 of 343 measured models
AIME 202562.3%
Rank 114 of 270 measured models
IFBench57.8%
Rank 138 of 450 measured models
AA-LCR31.0%
Rank 408 of 575 measured models
TerminalBench Hard4.5%
Rank 299 of 432 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

Preferences and analytics

Rybbit: visits, performance, clicks, copies, forms and session replay (masked inputs), with your permission. Refusing does not limit the site.

Privacy

Allow navigation analytics?

With your permission, Rybbit measures visits, performance and interactions (clicks, copies, forms), including session replay, to improve BenchSift. Input values are masked in replays. Refusing does not limit the site.

Your choice is stored for 180 days. Change it at any time using “Privacy preferences” in the footer. Withdrawal reloads the page.

No choice stored: Rybbit is disabled.

Privacy