Model comparison

Gemini 4 Argon vs Step 3

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 40.5 on the Noometry Index.

Last verified . 13 shared benchmarks.

Gemini 4 Argon Google

56.5

Rank #24 Confirmed

Step 3 StepFun

40.5

Rank #149 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Gemini 4 Argon scores higher in 9 categories and Step 3 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Gemini 4 Argon leads 73.9 to 37.6.
  • Step 3 has downloadable open weights; the other is API-only.

Side by side

Gemini 4 Argon and Step 3 specifications
Gemini 4 ArgonStep 3
ProviderGoogleStepFun
Noometry Index56.540.5
Released2026-09-30—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2117

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Category by category

Coding Gemini 4 Argon leads

Gemini 4 Argon: 62.0 (#9), Step 3: 40.1 (#147)

Coding benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Coding15501367
LMArena WebDev1678—
FrontierSWE55%—
SciCode61.8%—

Agentic & Tool Use Not comparable

Gemini 4 Argon: 49.2 (#8), Step 3: —

Agentic & Tool Use benchmarks
BenchmarkGemini 4 ArgonStep 3
APEX-Agents82.2%—
Vending-Bench 213,718—

Reasoning Gemini 4 Argon leads

Gemini 4 Argon: 44.2 (#47), Step 3: 28.4 (#105)

Reasoning benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Hard Prompts15481355
Kagi LLM Benchmark—62.3%
CritPt27.1%—

Math Gemini 4 Argon leads

Gemini 4 Argon: 73.9 (#17), Step 3: 37.6 (#148)

Math benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Math15361366
ProofBench99%—

Knowledge Gemini 4 Argon leads

Gemini 4 Argon: 43.9 (#89), Step 3: 36.8 (#164)

Knowledge benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Expert15531333

Multimodal Gemini 4 Argon leads

Gemini 4 Argon: 46.5 (#14), Step 3: 35.5 (#86)

Multimodal benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Vision—1177
Blueprint-Bench 254.4%—

Multilingual Gemini 4 Argon leads

Gemini 4 Argon: 60.3 (#1), Step 3: 46.3 (#159)

Multilingual benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Non-English15231327
LMArena Chinese16101397
LMArena Russian15371331
LMArena Spanish14971371
LMArena German—1371
LMArena Korean—1269

Instruction Following Gemini 4 Argon leads

Gemini 4 Argon: 80.1 (#2), Step 3: 70.4 (#164)

Instruction Following benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Instruction Following15381332

Long Context Gemini 4 Argon leads

Gemini 4 Argon: 47.6 (#15), Step 3: 40.3 (#157)

Long Context benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Longer Query15491326

Writing & Preference Gemini 4 Argon leads

Gemini 4 Argon: 71.4 (#19), Step 3: 54.3 (#151)

Writing & Preference benchmarks
BenchmarkGemini 4 ArgonStep 3
LMArena Text15341350
LMArena Creative Writing15311321
LMArena Multi-Turn15571341

Frequently asked questions

Is Gemini 4 Argon better than Step 3?

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 40.5 on the Noometry Index.

Is Gemini 4 Argon or Step 3 better for coding?

Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 40.1 in the Noometry coding category.

How many benchmarks do Gemini 4 Argon and Step 3 share?

13 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and Step 3 has 17.

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