Noometry

Model comparison

Gemma 4 26B A4B IT vs Grok 4.1 Fast

Gemma 4 26B A4B IT is the stronger model overall, scoring 43.5 to 41.4 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemma 4 26B A4B IT Google

43.5

Rank #92 Confirmed

Grok 4.1 Fast xAI

41.4

Rank #136 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemma 4 26B A4B IT scores higher in 8 categories and Grok 4.1 Fast in 1 category; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 21.8.
  • The biggest single-benchmark swing is DTBench: 74.9% for Gemma 4 26B A4B IT and 87.7% for Grok 4.1 Fast.
  • Gemma 4 26B A4B IT is cheaper at $0.0675 / $0.23 per million input/output tokens, against $0.20 / $0.50 for Grok 4.1 Fast.
  • Gemma 4 26B A4B IT accepts more context: 262K tokens versus 128K.
  • Gemma 4 26B A4B IT has downloadable open weights; the other is API-only.

Side by side

Gemma 4 26B A4B ITGrok 4.1 Fast
ProviderGooglexAI
Noometry Index43.541.4
Released2026-04-022025-06-27
WeightsOpenProprietary
Context window262K128K
Max output33K30K
Input $ / M tokens$0.0675$0.20
Output $ / M tokens$0.23$0.50
Results tracked2832

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Category by category

Coding Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 39.0 (#164), Grok 4.1 Fast: 34.1 (#245)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena WebDev13591242
LMArena Coding14471411
ALE-Bench927.17394.93
SciCode40%—
WeirdML35.2%—

Agentic & Tool Use Not comparable

Gemma 4 26B A4B IT: —, Grok 4.1 Fast: 36.3 (#39)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
Berkeley Function Calling Leaderboard—69.6%
τ²-bench Banking—13.1%
LMArena Search—1171
Vending-Bench 2—1,107

Reasoning Grok 4.1 Fast leads

Gemma 4 26B A4B IT: 21.8 (#213), Grok 4.1 Fast: 43.4 (#49)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Hard Prompts14391407
DTBench74.9%87.7%
SimpleBench—56%
NYT Connections (extended)—87.4%
CritPt0%—
Chess Puzzles6%—
LMCA29.7%—
Epoch Capabilities Index141.85—
ForecastBench—61

Math Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 47.6 (#67), Grok 4.1 Fast: 31.9 (#221)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Math14701408
MathArena Final-Answer Competitions—60.9%
OTIS Mock AIME 2024-202582.2%—
ProofBench—4%

Knowledge Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 45.7 (#85), Grok 4.1 Fast: 33.1 (#207)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
Vectara Hallucination Rate5.2%17.8%
LMArena Expert14471399
GPQA Diamond73.2%—

Multimodal Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 40.6 (#46), Grok 4.1 Fast: 37.0 (#76)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Vision12601201

Multilingual Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 53.1 (#71), Grok 4.1 Fast: 51.0 (#114)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Non-English14211391
LMArena Chinese14951441
LMArena French14601415
LMArena Russian14341387
LMArena Spanish14171413
LMArena German—1404
LMArena Japanese—1349
LMArena Korean—1361

Instruction Following Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 74.8 (#82), Grok 4.1 Fast: 72.7 (#133)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Instruction Following14201376

Long Context Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 43.6 (#91), Grok 4.1 Fast: 42.4 (#126)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Longer Query14281390

Writing & Preference Gemma 4 26B A4B IT leads

Gemma 4 26B A4B IT: 58.6 (#115), Grok 4.1 Fast: 57.2 (#131)

BenchmarkGemma 4 26B A4B ITGrok 4.1 Fast
LMArena Text14341408
LMArena Creative Writing14021394
EQ-Bench Creative Writing13051327
LMArena Multi-Turn14411389

Frequently asked questions

Is Gemma 4 26B A4B IT better than Grok 4.1 Fast?

Gemma 4 26B A4B IT is the stronger model overall, scoring 43.5 to 41.4 on the Noometry Index.

Which is cheaper, Gemma 4 26B A4B IT or Grok 4.1 Fast?

Gemma 4 26B A4B IT is cheaper. It lists at $0.0675 per million input tokens and $0.23 per million output tokens; Grok 4.1 Fast lists at $0.20 and $0.50.

Is Gemma 4 26B A4B IT or Grok 4.1 Fast better for coding?

Gemma 4 26B A4B IT scores higher on coding benchmarks: 39.0 versus 34.1 in the Noometry coding category.

Which has the bigger context window?

Gemma 4 26B A4B IT does, with 262K tokens against 128K.

How many benchmarks do Gemma 4 26B A4B IT and Grok 4.1 Fast share?

20 benchmarks have published results for both models. Gemma 4 26B A4B IT has 28 scored results on Noometry and Grok 4.1 Fast has 32.

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