Noometry

Model comparison

Gemini 3.5 Flash vs Yi-1.5-34B

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 30.6 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 3.5 Flash Google

54.2

Rank #32 Confirmed

Yi-1.5-34B 01.AI

30.6

Rank #289 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 8 categories and Yi-1.5-34B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3.5 Flash leads 66.3 to 14.8.
  • The biggest single-benchmark swing is GPQA Diamond: 92.8% for Gemini 3.5 Flash and 32% for Yi-1.5-34B.
  • Yi-1.5-34B has downloadable open weights; the other is API-only.

Side by side

Gemini 3.5 FlashYi-1.5-34B
ProviderGoogle01.AI
Noometry Index54.230.6
Released2026-05-192024-05-13
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$1.50—
Output $ / M tokens$9—
Results tracked5421

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Category by category

Coding Gemini 3.5 Flash leads

Gemini 3.5 Flash: 49.4 (#49), Yi-1.5-34B: 32.4 (#272)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Coding14921169
SWE-bench Verified79.3%—
DeepSWE37.4%—
LMArena WebDev1499—
SciCode53.1%—
WeirdML62.6%—
BigCodeBench Instruct—33.9%
BigCodeBench Complete—43.8%
ALE-Bench911.02—

Agentic & Tool Use Not comparable

Gemini 3.5 Flash: 24.7 (#114), Yi-1.5-34B: —

BenchmarkGemini 3.5 FlashYi-1.5-34B
APEX-Agents27.5%—
GBAEval6.7%—
GDP.pdf14%—
Vending-Bench 25,396—

Reasoning Gemini 3.5 Flash leads

Gemini 3.5 Flash: 62.8 (#18), Yi-1.5-34B: 22.5 (#191)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Hard Prompts14881160
ARC-AGI-272.1%—
SimpleBench76.7%—
NYT Connections (extended)92.6%—
ARC-AGI-192.5%—
CritPt13.1%—
Chess Puzzles50%—
EnigmaEval25.4%—
EBR-Bench4.8%—
Mystery Game Puzzles32%—
DTBench94.7%—
LMCA47.1%—
Surface Evolver Bench58.1%—
Epoch Capabilities Index154.46—
ForecastBench59—

Math Gemini 3.5 Flash leads

Gemini 3.5 Flash: 60.7 (#36), Yi-1.5-34B: 27.5 (#249)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Math15041182
FrontierMath (Tiers 1-3)62.8%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions76.3%—
OTIS Mock AIME 2024-202595.6%—
ProofBench31%—
MATH Level 5—25.5%
FrontierMath (Feb 2025 set)39%—
FrontierMath Tier 4 (v1)14.6%—

Knowledge Gemini 3.5 Flash leads

Gemini 3.5 Flash: 66.3 (#11), Yi-1.5-34B: 14.8 (#295)

BenchmarkGemini 3.5 FlashYi-1.5-34B
GPQA Diamond92.8%32%
LMArena Expert14951144
SimpleQA Verified66.2%—

Multimodal Not comparable

Gemini 3.5 Flash: 45.7 (#15), Yi-1.5-34B: —

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Vision1310—
Blueprint-Bench 233.6%—
LMArena Document1463—

Multilingual Gemini 3.5 Flash leads

Gemini 3.5 Flash: 57.0 (#13), Yi-1.5-34B: 32.3 (#256)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Non-English14761121
LMArena Chinese15261213
LMArena French14901156
LMArena German14921111
LMArena Japanese14861021
LMArena Korean14511005
LMArena Russian14931091
LMArena Spanish14801121

Instruction Following Gemini 3.5 Flash leads

Gemini 3.5 Flash: 77.0 (#30), Yi-1.5-34B: 59.2 (#257)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Instruction Following14671139

Long Context Gemini 3.5 Flash leads

Gemini 3.5 Flash: 45.4 (#38), Yi-1.5-34B: 34.6 (#248)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Longer Query14821143

Writing & Preference Gemini 3.5 Flash leads

Gemini 3.5 Flash: 65.5 (#47), Yi-1.5-34B: 37.4 (#257)

BenchmarkGemini 3.5 FlashYi-1.5-34B
LMArena Text14821173
LMArena Creative Writing14701135
LMArena Multi-Turn14811153
EQ-Bench 41087—

Frequently asked questions

Is Gemini 3.5 Flash better than Yi-1.5-34B?

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 30.6 on the Noometry Index.

Is Gemini 3.5 Flash or Yi-1.5-34B better for coding?

Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 32.4 in the Noometry coding category.

How many benchmarks do Gemini 3.5 Flash and Yi-1.5-34B share?

18 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Yi-1.5-34B has 21.

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