Noometry

Model comparison

Gemma 2B vs Kimi K2.5

Kimi K2.5 is the stronger model overall, scoring 48.1 to 29.6 on the Noometry Index.

Last verified . 12 shared benchmarks.

Gemma 2B Google

29.6

Rank #307 Confirmed

Kimi K2.5 Moonshot AI

48.1

Rank #57 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Gemma 2B scores higher in 0 categories and Kimi K2.5 in 7 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Kimi K2.5 leads 65.1 to 24.0.

Side by side

Gemma 2BKimi K2.5
ProviderGoogleMoonshot AI
Noometry Index29.648.1
Released2024-02-212026-01-27
WeightsOpenOpen
Context window—262K
Max output—262K
Input $ / M tokens—$0.45
Output $ / M tokens—$2.25
Results tracked2351

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Category by category

Coding Kimi K2.5 leads

Gemma 2B: 29.4 (#305), Kimi K2.5: 48.8 (#53)

BenchmarkGemma 2BKimi K2.5
LMArena Coding10101474
SWE-bench Verified—73.8%
SWE-bench Verified (bash only)—70.8%
LMArena WebDev—1437
SWE-bench Multilingual—67.3%
SciCode—49%
WeirdML—45.6%
ALE-Bench—821.65
HumanEval+20.7%—
MBPP+34.1%—

Agentic & Tool Use Not comparable

Gemma 2B: —, Kimi K2.5: 34.2 (#48)

BenchmarkGemma 2BKimi K2.5
Terminal-Bench—43.2%
OSWorld—63.3%
Vending-Bench 2—1,198

Reasoning Kimi K2.5 leads

Gemma 2B: 18.8 (#275), Kimi K2.5: 31.2 (#80)

BenchmarkGemma 2BKimi K2.5
LMArena Hard Prompts9891453
Epoch Capabilities Index94.2148.03
ARC-AGI-2—11.8%
SimpleBench—46.8%
Kagi LLM Benchmark—78.5%
NYT Connections (extended)—69.9%
ARC-AGI-1—65.3%
CritPt—3.1%
Chess Puzzles—12%
EnigmaEval—3.4%
Thematic Generalization—69.4%
BIG-Bench Hard35.2%—
HellaSwag71.4%—
PIQA77.3%—
WinoGrande65.4%—

Math Kimi K2.5 leads

Gemma 2B: 30.0 (#239), Kimi K2.5: 51.8 (#53)

BenchmarkGemma 2BKimi K2.5
LMArena Math10091470
MathArena Final-Answer Competitions—62.3%
OTIS Mock AIME 2024-2025—92.2%
FrontierMath (Feb 2025 set)—27.9%
FrontierMath Tier 4 (v1)—4.2%
GSM8K17.7%—

Knowledge Not comparable

Gemma 2B: —, Kimi K2.5: 53.6 (#56)

BenchmarkGemma 2BKimi K2.5
GPQA Diamond—87.6%
Humanity's Last Exam—24.4%
SimpleQA Verified—34.3%
Vectara Hallucination Rate—14.2%
LMArena Expert—1466
ARC (AI2) Challenge42.1%—
BoolQ69.4%—
MMLU42.3%—
TriviaQA53.2%—

Multimodal Not comparable

Gemma 2B: —, Kimi K2.5: 41.1 (#39)

BenchmarkGemma 2BKimi K2.5
LMArena Vision—1269
LMArena Document—1430

Multilingual Kimi K2.5 leads

Gemma 2B: 23.0 (#294), Kimi K2.5: 53.9 (#53)

BenchmarkGemma 2BKimi K2.5
LMArena Non-English9581433
LMArena Chinese9861495
LMArena Russian9371435
LMArena French—1454
LMArena German—1441
LMArena Japanese—1421
LMArena Korean—1410
LMArena Spanish—1450

Instruction Following Kimi K2.5 leads

Gemma 2B: 48.5 (#302), Kimi K2.5: 75.3 (#64)

BenchmarkGemma 2BKimi K2.5
LMArena Instruction Following9701431

Long Context Kimi K2.5 leads

Gemma 2B: 29.9 (#291), Kimi K2.5: 52.1 (#7)

BenchmarkGemma 2BKimi K2.5
LMArena Longer Query9811445
Fiction.LiveBench—86.1%
CL-bench—19.3%
CL-bench Life—13.2%

Writing & Preference Kimi K2.5 leads

Gemma 2B: 24.0 (#308), Kimi K2.5: 65.1 (#53)

BenchmarkGemma 2BKimi K2.5
LMArena Text10021445
LMArena Creative Writing9871423
LMArena Multi-Turn9451444
EQ-Bench Creative Writing—1579

Frequently asked questions

Is Gemma 2B better than Kimi K2.5?

Kimi K2.5 is the stronger model overall, scoring 48.1 to 29.6 on the Noometry Index.

Is Gemma 2B or Kimi K2.5 better for coding?

Kimi K2.5 scores higher on coding benchmarks: 48.8 versus 29.4 in the Noometry coding category.

How many benchmarks do Gemma 2B and Kimi K2.5 share?

12 benchmarks have published results for both models. Gemma 2B has 23 scored results on Noometry and Kimi K2.5 has 51.

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