GPT-OSS 20B gpt-oss-20b

openai · gpt-oss reasoning efficient

unranked — no quality signals yet

params
21B (A3.6B)
arch
moe
context
128k
license
apache-2.0 open weights
released
Aug 2025
reasoning
yes
train compute
5.5e+23 FLOP
downloads/30d
7.0M

# why ranked

Overall: provisional — score 14.9 ● low — a single signal; treat with caution

provisional: too few independent signals for a numbered position — the score is shown, but this model sorts after every ranked model.

signalweightinput (0–100)
aa_intelligence 0.50 14.9
arena_elo 0.30
bench_composite 0.20

missing signals are dropped and the remaining weights renormalized — never imputed.

Coding: provisional — score 20.7 ● low — a single signal; treat with caution

provisional: too few independent signals for a numbered position — the score is shown, but this model sorts after every ranked model.

signalweightinput (0–100)
aa_coding 0.25 20.7
aider_polyglot 0.25
arena_elo_code 0.15
swe_bench_verified 0.35

missing signals are dropped and the remaining weights renormalized — never imputed.

full methodology

# trend

OGM score · last 2 days
OGM score over 2 days

# benchmarks

benchmarkscoresourcedate
AA Coding Index 20.7 Artificial Analysis
AA Intelligence Index 14.9 Artificial Analysis
AA Math Index 89.3 Artificial Analysis
Codeforces 0.7 / 3000 LLM Stats

# where to run

providerquantctx$/M in$/M out$/M blendtpsuptime
WandBfp4 128k $0.03$0.13$0.06 98.7%
DekaLLMbf16 128k $0.03$0.14$0.06 91.2%
DeepInfrabf16 128k $0.03$0.14$0.06 99.8%
Novitafp4 128k $0.04$0.15$0.07 99.6%
Phalaunknown 128k $0.04$0.15$0.07 95.8%
SiliconFlowfp8 128k $0.04$0.18$0.07 100.0%
Parasailfp4 128k $0.04$0.20$0.08 94.5%
Togetherunknown 128k $0.05$0.20$0.09
Amazon Bedrockunknown 128k $0.07$0.15$0.09
Amazon Bedrockunknown 128k $0.07$0.15$0.09 97.6%
Googleunknown 128k $0.07$0.25$0.12
Fireworksunknown 128k $0.07$0.30$0.13 98.2%
Groqunknown 128k $0.07$0.30$0.13 99.7%

blended = (3·input + output) / 4 per 1M tokens · cheapest first

source aliases
aa
gpt-oss-20b
arena
gpt-oss-20b
openrouter
openai/gpt-oss-20b