Noometry

Model comparison

Claude Sonnet 4.5 vs Gemma 3 4B

Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 28.1 on the Noometry Index. Gemma 3 4B costs 120× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.

Last verified . 22 shared benchmarks.

Claude Sonnet 4.5 Anthropic

44.1

Rank #81 Confirmed

Gemma 3 4B Google

28.1

Rank #326 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Claude Sonnet 4.5 scores higher in 9 categories and Gemma 3 4B in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Sonnet 4.5 leads 48.4 to 11.8.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 77.8% for Claude Sonnet 4.5 and 7.5% for Gemma 3 4B.
  • Gemma 3 4B is cheaper at $0.04 / $0.08 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.5.
  • Claude Sonnet 4.5 accepts more context: 200K tokens versus 131K.
  • Gemma 3 4B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 4.5Gemma 3 4B
ProviderAnthropicGoogle
Noometry Index44.128.1
Released2025-09-292025-03-12
WeightsProprietaryOpen
Context window200K131K
Max output64K4K
Input $ / M tokens$3$0.04
Output $ / M tokens$15$0.08
Results tracked7322

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Category by category

Coding Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 47.3 (#61), Gemma 3 4B: 35.9 (#215)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
LMArena Coding14891230
SWE-bench Verified71.3%—
SWE-bench Verified (bash only)71.4%—
LMArena WebDev1393—
SWE-bench Multilingual67%—
SciCode44.7%—
GSO14.7%—
WeirdML47.7%—
ALE-Bench796.15—
AlgoTune1.52—

Agentic & Tool Use Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 38.3 (#32), Gemma 3 4B: 20.9 (#142)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
Berkeley Function Calling Leaderboard73.2%19.6%
Terminal-Bench46.5%—
GDPval42.5%—
Remote Labor Index2.1%—
τ²-bench Airline72%—
τ²-bench Banking25.3%—
τ²-bench Retail72.4%—
τ²-bench Telecom84.9%—
Cybench60%—
DeepResearch Bench52.6%—
OSWorld62.9%—
LMArena Search1159—
METR Time Horizons67.4%—
Vending-Bench 23,839—

Reasoning Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 26.9 (#125), Gemma 3 4B: 13.2 (#335)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
Kagi LLM Benchmark57.9%25.2%
Chess Puzzles12%0%
LMArena Hard Prompts14621253
DTBench83.2%50.9%
LMCA38.8%2.8%
Epoch Capabilities Index146.84116.02
ARC-AGI-213.6%—
SimpleBench54.3%—
NYT Connections (extended)37.3%—
ARC-AGI-163.7%—
CritPt1.1%—
EnigmaEval6%—
EBR-Bench2.4%—
Mystery Game Puzzles17%—
ForecastBench61.9—

Math Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 32.3 (#216), Gemma 3 4B: 16.8 (#292)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
OTIS Mock AIME 2024-202577.8%7.5%
LMArena Math14491239
FrontierMath (Tiers 1-3)23.9%—
FrontierMath Tier 42.4%—
ProofBench19%—
Omni-MATH55.3%—
MATH Level 597.7%—
FrontierMath (Feb 2025 set)15.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 48.4 (#76), Gemma 3 4B: 11.8 (#299)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
GPQA Diamond82.3%23.2%
Vectara Hallucination Rate12%6.4%
LMArena Expert14821223
Humanity's Last Exam13.7%—
SimpleQA Verified30.7%—
MMLU-Pro86.9%—
GPQA (HELM)68.6%—

Multimodal Not comparable

Claude Sonnet 4.5: 34.8 (#89), Gemma 3 4B: —

BenchmarkClaude Sonnet 4.5Gemma 3 4B
VPCT39.8%—
LMArena Document1450—

Multilingual Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 53.4 (#69), Gemma 3 4B: 42.5 (#194)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
LMArena Non-English14251273
LMArena German14271281
LMArena Russian14371294
LMArena Chinese1459—
LMArena French1458—
LMArena Japanese1390—
LMArena Korean1403—
LMArena Spanish1457—

Instruction Following Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 75.0 (#78), Gemma 3 4B: 65.2 (#225)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
LMArena Instruction Following14591239
IFEval85%—

Long Context Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 45.2 (#46), Gemma 3 4B: 38.7 (#194)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
LMArena Longer Query14761273

Writing & Preference Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 66.5 (#34), Gemma 3 4B: 42.0 (#239)

BenchmarkClaude Sonnet 4.5Gemma 3 4B
LMArena Text14391291
LMArena Creative Writing14421271
EQ-Bench Creative Writing16781068
LMArena Multi-Turn14651255
WildBench85.4%—

Frequently asked questions

Is Claude Sonnet 4.5 better than Gemma 3 4B?

Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 28.1 on the Noometry Index. Gemma 3 4B costs 120× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 4.5 or Gemma 3 4B?

Gemma 3 4B is cheaper. It lists at $0.04 per million input tokens and $0.08 per million output tokens; Claude Sonnet 4.5 lists at $3 and $15.

Is Claude Sonnet 4.5 or Gemma 3 4B better for coding?

Claude Sonnet 4.5 scores higher on coding benchmarks: 47.3 versus 35.9 in the Noometry coding category.

Which has the bigger context window?

Claude Sonnet 4.5 does, with 200K tokens against 131K.

How many benchmarks do Claude Sonnet 4.5 and Gemma 3 4B share?

22 benchmarks have published results for both models. Claude Sonnet 4.5 has 73 scored results on Noometry and Gemma 3 4B has 22.

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