Noometry

Model comparison

Gemini 3.1 Flash Lite vs Yi-1.5-34B

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 30.6 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 3.1 Flash Lite Google

40.8

Rank #144 Confirmed

Yi-1.5-34B 01.AI

30.6

Rank #289 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 8 categories and Yi-1.5-34B in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3.1 Flash Lite leads 41.9 to 14.8.
  • The biggest single-benchmark swing is GPQA Diamond: 81.8% for Gemini 3.1 Flash Lite and 32% for Yi-1.5-34B.
  • Yi-1.5-34B has downloadable open weights; the other is API-only.

Side by side

Gemini 3.1 Flash LiteYi-1.5-34B
ProviderGoogle01.AI
Noometry Index40.830.6
Released2026-03-032024-05-13
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$0.25—
Output $ / M tokens$1.50—
Results tracked3821

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Category by category

Coding Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 37.8 (#188), Yi-1.5-34B: 32.4 (#272)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Coding14001169
LMArena WebDev1256—
SciCode41.9%—
WeirdML52.2%—
BigCodeBench Instruct—33.9%
BigCodeBench Complete—43.8%
ALE-Bench797.73—

Agentic & Tool Use Not comparable

Gemini 3.1 Flash Lite: 30.2 (#79), Yi-1.5-34B: —

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
DeepResearch Bench37.3%—

Reasoning Too close to call

Gemini 3.1 Flash Lite: 22.9 (#186), Yi-1.5-34B: 22.5 (#191)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Hard Prompts14071160
Kagi LLM Benchmark67.2%—
NYT Connections (extended)8.2%—
CritPt1.1%—
Chess Puzzles25%—
EnigmaEval3%—
Thematic Generalization63.3%—
DTBench76.8%—
LMCA35%—
Epoch Capabilities Index144.47—
ForecastBench54.4—

Math Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 40.7 (#90), Yi-1.5-34B: 27.5 (#249)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Math14281182
FrontierMath (Tiers 1-3)27.7%—
OTIS Mock AIME 2024-202580%—
MATH Level 5—25.5%

Knowledge Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 41.9 (#104), Yi-1.5-34B: 14.8 (#295)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
GPQA Diamond81.8%32%
LMArena Expert13981144
Humanity's Last Exam8.6%—
Vectara Hallucination Rate8.2%—

Multimodal Not comparable

Gemini 3.1 Flash Lite: 39.4 (#60), Yi-1.5-34B: —

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Vision1240—

Multilingual Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 52.3 (#86), Yi-1.5-34B: 32.3 (#256)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Non-English14111121
LMArena Chinese14611213
LMArena French14241156
LMArena German14291111
LMArena Japanese14131021
LMArena Korean13921005
LMArena Russian14201091
LMArena Spanish14211121

Instruction Following Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 72.7 (#131), Yi-1.5-34B: 59.2 (#257)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Instruction Following13771139

Long Context Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 42.5 (#122), Yi-1.5-34B: 34.6 (#248)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Longer Query13941143

Writing & Preference Gemini 3.1 Flash Lite leads

Gemini 3.1 Flash Lite: 60.9 (#94), Yi-1.5-34B: 37.4 (#257)

BenchmarkGemini 3.1 Flash LiteYi-1.5-34B
LMArena Text14161173
LMArena Creative Writing14011135
LMArena Multi-Turn14171153

Frequently asked questions

Is Gemini 3.1 Flash Lite better than Yi-1.5-34B?

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 30.6 on the Noometry Index.

Is Gemini 3.1 Flash Lite or Yi-1.5-34B better for coding?

Gemini 3.1 Flash Lite scores higher on coding benchmarks: 37.8 versus 32.4 in the Noometry coding category.

How many benchmarks do Gemini 3.1 Flash Lite and Yi-1.5-34B share?

18 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Yi-1.5-34B has 21.

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