Model comparison

Gemma 4 31B IT vs Sonar

Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 38.5 on the Noometry Index.

Last verified October 11, 2026. 0 shared benchmarks.

Gemma 4 31B IT

Google

43.5

Rank #90 Confirmed

Sonar

Perplexity

38.5

Rank #187 Confirmed

Summary

The widest gap is in math, where Gemma 4 31B IT leads 43.2 to 33.7.
Gemma 4 31B IT is cheaper at $0.09 / $0.34 per million input/output tokens, against $1 / $1 for Sonar.
Gemma 4 31B IT accepts more context: 262K tokens versus 128K.
Gemma 4 31B IT has downloadable open weights; the other is API-only.

Side by side

Gemma 4 31B IT and Sonar specifications
	Gemma 4 31B IT	Sonar
Provider	Google	Perplexity
Noometry Index	43.5	38.5
Released	2026-04-02	2024-01-01
Weights	Open	Proprietary
Context window	262K	128K
Max output	33K	4K
Input $ / M tokens	$0.09	$1
Output $ / M tokens	$0.34	$1
Results tracked	35	7

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Category by category

Coding Gemma 4 31B IT leads

Gemma 4 31B IT: 42.3 (#108), Sonar: 35.7 (#221)

Coding benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LMArena WebDev	1366	—
SciCode	43.4%	—
WeirdML	52.3%	—
LiveBench Coding	—	35.1%
LMArena Coding	1459	—
ALE-Bench	925.5	—

Reasoning Gemma 4 31B IT leads

Gemma 4 31B IT: 27.2 (#122), Sonar: 21.1 (#227)

Reasoning benchmarks
Benchmark	Gemma 4 31B IT	Sonar
Kagi LLM Benchmark	63.5%	—
NYT Connections (extended)	70.6%	—
CritPt	1.4%	—
Chess Puzzles	5%	—
Thematic Generalization	53%	—
LiveBench Reasoning	—	46.3%
LMArena Hard Prompts	1448	—
DTBench	82.7%	—
LiveBench Data Analysis	—	37.9%
LMCA	39.3%	—
Surface Evolver Bench	30.6%	—
Epoch Capabilities Index	142.74	—
LiveBench	—	46.9%

Math Gemma 4 31B IT leads

Gemma 4 31B IT: 43.2 (#81), Sonar: 33.7 (#200)

Math benchmarks
Benchmark	Gemma 4 31B IT	Sonar
OTIS Mock AIME 2024-2025	73.3%	—
LiveBench Math	—	41.6%
LMArena Math	1465	—

Knowledge Not comparable

Gemma 4 31B IT: 37.9 (#151), Sonar: —

Knowledge benchmarks
Benchmark	Gemma 4 31B IT	Sonar
GPQA Diamond	75.8%	—
SimpleQA Verified	10.4%	—
Vectara Hallucination Rate	7.4%	—
LMArena Expert	1465	—

Multimodal Not comparable

Gemma 4 31B IT: 41.6 (#34), Sonar: —

Multimodal benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LMArena Vision	1277	—
LMArena Document	1425	—

Multilingual Not comparable

Gemma 4 31B IT: 53.8 (#57), Sonar: —

Multilingual benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LMArena Non-English	1431	—
LMArena Chinese	1476	—
LMArena French	1435	—
LMArena Russian	1460	—
LMArena Spanish	1444	—

Instruction Following Gemma 4 31B IT leads

Gemma 4 31B IT: 75.5 (#61), Sonar: 71.4 (#150)

Instruction Following benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LiveBench Instruction Following	—	76.2%
LMArena Instruction Following	1433	—

Long Context Not comparable

Gemma 4 31B IT: 44.2 (#71), Sonar: —

Long Context benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LMArena Longer Query	1446	—

Writing & Preference Gemma 4 31B IT leads

Gemma 4 31B IT: 60.5 (#96), Sonar: 52.6 (#167)

Writing & Preference benchmarks
Benchmark	Gemma 4 31B IT	Sonar
LMArena Text	1443	—
LMArena Creative Writing	1415	—
EQ-Bench Creative Writing	1368	—
EQ-Bench 4	1120	—
LMArena Multi-Turn	1452	—
LiveBench Language	—	44.1%

Frequently asked questions

Is Gemma 4 31B IT better than Sonar?

Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 38.5 on the Noometry Index.

Which is cheaper, Gemma 4 31B IT or Sonar?

Gemma 4 31B IT is cheaper. It lists at $0.09 per million input tokens and $0.34 per million output tokens; Sonar lists at $1 and $1.

Is Gemma 4 31B IT or Sonar better for coding?

Gemma 4 31B IT scores higher on coding benchmarks: 42.3 versus 35.7 in the Noometry coding category.

Which has the bigger context window?

Gemma 4 31B IT does, with 262K tokens against 128K.

How many benchmarks do Gemma 4 31B IT and Sonar share?

0 benchmarks have published results for both models. Gemma 4 31B IT has 35 scored results on Noometry and Sonar has 7.