Model comparison

Gemma 4 31B IT vs GPT-5.4

GPT-5.4 is the stronger model overall, scoring 59.4 to 43.5 on the Noometry Index. Gemma 4 31B IT costs 37× less per token, which makes it the better buy when GPT-5.4's lead doesn't matter for your workload.

Last verified . 34 shared benchmarks.

Gemma 4 31B IT Google

43.5

Rank #90 Confirmed

GPT-5.4 OpenAI

59.4

Rank #16 Confirmed

Summary

  • They share 34 benchmarks with published results for both. Gemma 4 31B IT scores higher in 0 categories and GPT-5.4 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.4 leads 61.8 to 27.2.
  • The biggest single-benchmark swing is Chess Puzzles: 5% for Gemma 4 31B IT and 44% for GPT-5.4.
  • Gemma 4 31B IT is cheaper at $0.09 / $0.34 per million input/output tokens, against $2.50 / $15 for GPT-5.4.
  • GPT-5.4 accepts more context: 1.05M tokens versus 262K.
  • Gemma 4 31B IT has downloadable open weights; the other is API-only.

Side by side

Gemma 4 31B IT and GPT-5.4 specifications
Gemma 4 31B ITGPT-5.4
ProviderGoogleOpenAI
Noometry Index43.559.4
Released2026-04-022026-03-05
WeightsOpenProprietary
Context window262K1.05M
Max output33K128K
Input $ / M tokens$0.09$2.50
Output $ / M tokens$0.34$15
Results tracked3568

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Category by category

Coding GPT-5.4 leads

Gemma 4 31B IT: 42.3 (#108), GPT-5.4: 52.6 (#33)

Coding benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena WebDev13661465
SciCode43.4%56.6%
WeirdML52.3%77.7%
LMArena Coding14591497
ALE-Bench925.51,607
SWE-bench Verified—76.9%
DeepSWE—51.8%
GSO—31.4%
MirrorCode—15.6%
AlgoTune—1.85

Agentic & Tool Use Not comparable

Gemma 4 31B IT: —, GPT-5.4: 46.5 (#13)

Agentic & Tool Use benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
Terminal-Bench—81.8%
APEX-Agents—52.4%
τ²-bench Banking—39.4%
DeepResearch Bench—35.1%
PostTrainBench—19%
GBAEval—45.1%
LMArena Search—1197
METR Time Horizons—74.3%
Vending-Bench 2—6,144

Reasoning GPT-5.4 leads

Gemma 4 31B IT: 27.2 (#122), GPT-5.4: 61.8 (#19)

Reasoning benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
Kagi LLM Benchmark63.5%63.8%
NYT Connections (extended)70.6%91.3%
CritPt1.4%23.4%
Chess Puzzles5%44%
Thematic Generalization53%80%
LMArena Hard Prompts14481485
DTBench82.7%94.4%
LMCA39.3%52%
Epoch Capabilities Index142.74156.81
ARC-AGI-2—74%
ARC-AGI-1—93.7%
EnigmaEval—16%
EBR-Bench—25.4%
Mystery Game Puzzles—37%
Surface Evolver Bench30.6%—
ForecastBench—59.5

Math GPT-5.4 leads

Gemma 4 31B IT: 43.2 (#81), GPT-5.4: 73.5 (#19)

Knowledge GPT-5.4 leads

Gemma 4 31B IT: 37.9 (#151), GPT-5.4: 65.3 (#14)

Knowledge benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
GPQA Diamond75.8%93.3%
SimpleQA Verified10.4%45.1%
Vectara Hallucination Rate7.4%7%
LMArena Expert14651507
Humanity's Last Exam—36.2%

Multimodal GPT-5.4 leads

Gemma 4 31B IT: 41.6 (#34), GPT-5.4: 43.7 (#20)

Multimodal benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena Vision12771303
LMArena Document14251471
Blueprint-Bench 2—27.1%
Furniture Assembly—37.5%

Multilingual GPT-5.4 leads

Gemma 4 31B IT: 53.8 (#57), GPT-5.4: 56.2 (#23)

Multilingual benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena Non-English14311465
LMArena Chinese14761519
LMArena French14351493
LMArena Russian14601480
LMArena Spanish14441454
LMArena German—1472
LMArena Japanese—1485
LMArena Korean—1448

Instruction Following GPT-5.4 leads

Gemma 4 31B IT: 75.5 (#61), GPT-5.4: 77.1 (#27)

Instruction Following benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena Instruction Following14331469

Long Context GPT-5.4 leads

Gemma 4 31B IT: 44.2 (#71), GPT-5.4: 50.3 (#8)

Long Context benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena Longer Query14461473
CL-bench—27.9%
CL-bench Life—21.7%

Writing & Preference GPT-5.4 leads

Gemma 4 31B IT: 60.5 (#96), GPT-5.4: 71.9 (#17)

Writing & Preference benchmarks
BenchmarkGemma 4 31B ITGPT-5.4
LMArena Text14431469
LMArena Creative Writing14151439
EQ-Bench Creative Writing13681840
EQ-Bench 411201272
LMArena Multi-Turn14521482

Frequently asked questions

Is Gemma 4 31B IT better than GPT-5.4?

GPT-5.4 is the stronger model overall, scoring 59.4 to 43.5 on the Noometry Index. Gemma 4 31B IT costs 37× less per token, which makes it the better buy when GPT-5.4's lead doesn't matter for your workload.

Which is cheaper, Gemma 4 31B IT or GPT-5.4?

Gemma 4 31B IT is cheaper. It lists at $0.09 per million input tokens and $0.34 per million output tokens; GPT-5.4 lists at $2.50 and $15.

Is Gemma 4 31B IT or GPT-5.4 better for coding?

GPT-5.4 scores higher on coding benchmarks: 52.6 versus 42.3 in the Noometry coding category.

Which has the bigger context window?

GPT-5.4 does, with 1.05M tokens against 262K.

How many benchmarks do Gemma 4 31B IT and GPT-5.4 share?

34 benchmarks have published results for both models. Gemma 4 31B IT has 35 scored results on Noometry and GPT-5.4 has 68.

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