Noometry

Model comparison

Gemini 4 Argon vs gpt-oss-20b

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 32.5 on the Noometry Index.

Last verified . 15 shared benchmarks.

Gemini 4 Argon Google

56.5

Rank #24 Confirmed

gpt-oss-20b OpenAI

32.5

Rank #255 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Gemini 4 Argon scores higher in 9 categories and gpt-oss-20b in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Gemini 4 Argon leads 49.2 to 9.3.
  • The biggest single-benchmark swing is SciCode: 61.8% for Gemini 4 Argon and 34.4% for gpt-oss-20b.
  • gpt-oss-20b has downloadable open weights; the other is API-only.

Side by side

Gemini 4 Argongpt-oss-20b
ProviderGoogleOpenAI
Noometry Index56.532.5
Released2026-09-302025-08-05
WeightsProprietaryOpen
Context window—131K
Max output—16K
Input $ / M tokens—$0.018
Output $ / M tokens—$0.09
Results tracked2134

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Category by category

Coding Gemini 4 Argon leads

Gemini 4 Argon: 62.0 (#9), gpt-oss-20b: 37.6 (#192)

BenchmarkGemini 4 Argongpt-oss-20b
SciCode61.8%34.4%
LMArena Coding15501306
LMArena WebDev1678—
FrontierSWE55%—
WeirdML—40.9%
ALE-Bench—566.05

Agentic & Tool Use Gemini 4 Argon leads

Gemini 4 Argon: 49.2 (#8), gpt-oss-20b: 9.3 (#154)

BenchmarkGemini 4 Argongpt-oss-20b
Terminal-Bench—3.4%
APEX-Agents82.2%—
Vending-Bench 213,718—

Reasoning Gemini 4 Argon leads

Gemini 4 Argon: 44.2 (#47), gpt-oss-20b: 19.3 (#261)

BenchmarkGemini 4 Argongpt-oss-20b
CritPt27.1%1.4%
LMArena Hard Prompts15481274
Kagi LLM Benchmark—53.2%
Chess Puzzles—4%
DTBench—68%
LMCA—14.5%
Epoch Capabilities Index—137.82

Math Gemini 4 Argon leads

Gemini 4 Argon: 73.9 (#17), gpt-oss-20b: 39.4 (#103)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Math15361317
OTIS Mock AIME 2024-2025—65.3%
ProofBench99%—
Omni-MATH—56.5%

Knowledge Gemini 4 Argon leads

Gemini 4 Argon: 43.9 (#89), gpt-oss-20b: 34.6 (#195)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Expert15531258
GPQA Diamond—60.8%
MMLU-Pro—74%
GPQA (HELM)—59.4%

Multimodal Not comparable

Gemini 4 Argon: 46.5 (#14), gpt-oss-20b: —

BenchmarkGemini 4 Argongpt-oss-20b
Blueprint-Bench 254.4%—

Multilingual Gemini 4 Argon leads

Gemini 4 Argon: 60.3 (#1), gpt-oss-20b: 42.2 (#197)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Non-English15231268
LMArena Chinese16101314
LMArena Russian15371278
LMArena Spanish14971267
LMArena German—1255
LMArena Japanese—1244
LMArena Korean—1236

Instruction Following Gemini 4 Argon leads

Gemini 4 Argon: 80.1 (#2), gpt-oss-20b: 61.8 (#240)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Instruction Following15381236
IFEval—73.2%

Long Context Gemini 4 Argon leads

Gemini 4 Argon: 47.6 (#15), gpt-oss-20b: 37.9 (#209)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Longer Query15491250

Writing & Preference Gemini 4 Argon leads

Gemini 4 Argon: 71.4 (#19), gpt-oss-20b: 35.5 (#265)

BenchmarkGemini 4 Argongpt-oss-20b
LMArena Text15341287
LMArena Creative Writing15311201
LMArena Multi-Turn15571268
EQ-Bench Creative Writing—666
WildBench—73.7%

Frequently asked questions

Is Gemini 4 Argon better than gpt-oss-20b?

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 32.5 on the Noometry Index.

Is Gemini 4 Argon or gpt-oss-20b better for coding?

Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 37.6 in the Noometry coding category.

How many benchmarks do Gemini 4 Argon and gpt-oss-20b share?

15 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and gpt-oss-20b has 34.

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