Noometry

Model comparison

Gemini 2.5 Flash vs Longcat Flash Chat

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 39.3 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 2.5 Flash Google

39.3

Rank #170 Confirmed

Longcat Flash Chat Meituan

42.1

Rank #120 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 4 categories and Longcat Flash Chat in 4 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in coding, where Longcat Flash Chat leads 43.5 to 35.8.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 56.8% for Gemini 2.5 Flash and 43.9% for Longcat Flash Chat.
  • Longcat Flash Chat has downloadable open weights; the other is API-only.

Side by side

Gemini 2.5 FlashLongcat Flash Chat
ProviderGoogleMeituan
Noometry Index39.342.1
Released2025-04-17—
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$0.30—
Output $ / M tokens$2.50—
Results tracked5419

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Category by category

Coding Longcat Flash Chat leads

Gemini 2.5 Flash: 35.8 (#220), Longcat Flash Chat: 43.5 (#87)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Coding14241471
SWE-bench Verified (bash only)28.7%—
Aider Polyglot55.1%—
WeirdML41.9%—
ALE-Bench661.88—

Agentic & Tool Use Not comparable

Gemini 2.5 Flash: 30.8 (#74), Longcat Flash Chat: —

BenchmarkGemini 2.5 FlashLongcat Flash Chat
Terminal-Bench17.1%—
Berkeley Function Calling Leaderboard56.2%—
TheAgentCompany41.1%—
BALROG33.5%—
Vending-Bench 2548.84—

Reasoning Too close to call

Gemini 2.5 Flash: 18.1 (#286), Longcat Flash Chat: 19.0 (#272)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
Kagi LLM Benchmark56.8%43.9%
LMArena Hard Prompts14221440
ARC-AGI-22.5%—
SimpleBench41.2%—
NYT Connections (extended)—17.7%
ARC-AGI-133.3%—
CritPt1.1%—
EnigmaEval2.7%—
DTBench76.5%—
LMCA27.5%—
Epoch Capabilities Index143.03—
ForecastBench60.6—

Math Too close to call

Gemini 2.5 Flash: 39.9 (#98), Longcat Flash Chat: 39.4 (#107)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Math14151442
OTIS Mock AIME 2024-202573.1%—
Omni-MATH38.5%—
FrontierMath (Feb 2025 set)4.8%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Longcat Flash Chat leads

Gemini 2.5 Flash: 36.4 (#168), Longcat Flash Chat: 40.6 (#116)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Expert14261454
Humanity's Last Exam12.1%—
MMLU-Pro63.9%—
Confabulations16.8%—
Vectara Hallucination Rate7.8%—
GPQA (HELM)39%—

Multimodal Not comparable

Gemini 2.5 Flash: 41.8 (#32), Longcat Flash Chat: —

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Vision1253—
GeoBench76%—
VPCT46.2%—
SpatialViz-Bench36.9%—

Multilingual Too close to call

Gemini 2.5 Flash: 52.3 (#88), Longcat Flash Chat: 51.9 (#101)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Non-English14091404
LMArena Chinese14501465
LMArena French14331456
LMArena German14181408
LMArena Japanese14051373
LMArena Korean13851371
LMArena Russian14151395
LMArena Spanish14211445

Instruction Following Gemini 2.5 Flash leads

Gemini 2.5 Flash: 75.7 (#54), Longcat Flash Chat: 74.4 (#96)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Instruction Following14051411
IFEval89.8%—

Long Context Gemini 2.5 Flash leads

Gemini 2.5 Flash: 47.5 (#17), Longcat Flash Chat: 43.5 (#93)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Longer Query14191425
Fiction.LiveBench77.8%—

Writing & Preference Longcat Flash Chat leads

Gemini 2.5 Flash: 53.8 (#157), Longcat Flash Chat: 61.0 (#91)

BenchmarkGemini 2.5 FlashLongcat Flash Chat
LMArena Text14171427
LMArena Creative Writing14001388
LMArena Multi-Turn14081418
Short-Story Creative Writing76.5%—
EQ-Bench Creative Writing1137—
WildBench81.7%—

Frequently asked questions

Is Gemini 2.5 Flash better than Longcat Flash Chat?

Longcat Flash Chat is the stronger model overall, scoring 42.1 to 39.3 on the Noometry Index.

Is Gemini 2.5 Flash or Longcat Flash Chat better for coding?

Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 35.8 in the Noometry coding category.

How many benchmarks do Gemini 2.5 Flash and Longcat Flash Chat share?

18 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Longcat Flash Chat has 19.

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