Noometry

Model comparison

Gemini 3.8 Flash vs Yi-1.5-34B

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 30.6 on the Noometry Index.

Last verified . 18 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Yi-1.5-34B 01.AI

30.6

Rank #289 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Gemini 3.8 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 3.8 Flash leads 74.8 to 14.8.
  • The biggest single-benchmark swing is GPQA Diamond: 95.4% for Gemini 3.8 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 3.8 FlashYi-1.5-34B
ProviderGoogle01.AI
Noometry Index61.830.6
Released2026-09-022024-05-13
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$0.75—
Output $ / M tokens$3.75—
Results tracked5021

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Category by category

Coding Gemini 3.8 Flash leads

Gemini 3.8 Flash: 59.2 (#15), Yi-1.5-34B: 32.4 (#272)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Coding15101169
DeepSWE73.8%—
FrontierCode41.2%—
CursorBench39.6%—
LMArena WebDev1584—
FrontierSWE19.6%—
SciCode56.6%—
WeirdML84.8%—
BigCodeBench Instruct—33.9%
BigCodeBench Complete—43.8%
ALE-Bench1,270—

Agentic & Tool Use Not comparable

Gemini 3.8 Flash: 41.8 (#21), Yi-1.5-34B: —

BenchmarkGemini 3.8 FlashYi-1.5-34B
APEX-Agents64.3%—
Remote Labor Index5.8%—
GDP.pdf23.4%—
Vending-Bench 25,094—

Reasoning Gemini 3.8 Flash leads

Gemini 3.8 Flash: 76.9 (#5), Yi-1.5-34B: 22.5 (#191)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Hard Prompts15081160
ARC-AGI-289.2%—
NYT Connections (extended)97.4%—
ARC-AGI-198.5%—
CritPt18.3%—
Chess Puzzles61%—
Mystery Game Puzzles47%—
DTBench95.7%—
LMCA52.9%—
Surface Evolver Bench76.9%—
Epoch Capabilities Index156.71—

Math Gemini 3.8 Flash leads

Gemini 3.8 Flash: 65.3 (#28), Yi-1.5-34B: 27.5 (#249)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Math15281182
FrontierMath (Tiers 1-3)68.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202598.9%—
ProofBench48%—
MATH Level 5—25.5%

Knowledge Gemini 3.8 Flash leads

Gemini 3.8 Flash: 74.8 (#2), Yi-1.5-34B: 14.8 (#295)

BenchmarkGemini 3.8 FlashYi-1.5-34B
GPQA Diamond95.4%32%
LMArena Expert15241144
Humanity's Last Exam44.5%—
SimpleQA Verified69.7%—

Multimodal Not comparable

Gemini 3.8 Flash: 40.7 (#45), Yi-1.5-34B: —

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Vision1314—
Blueprint-Bench 238.6%—
Furniture Assembly31.7%—

Multilingual Gemini 3.8 Flash leads

Gemini 3.8 Flash: 58.0 (#5), Yi-1.5-34B: 32.3 (#256)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Non-English14911121
LMArena Chinese15541213
LMArena French14981156
LMArena German14931111
LMArena Japanese15021021
LMArena Korean14591005
LMArena Russian15151091
LMArena Spanish14851121

Instruction Following Gemini 3.8 Flash leads

Gemini 3.8 Flash: 78.0 (#13), Yi-1.5-34B: 59.2 (#257)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Instruction Following14901139

Long Context Gemini 3.8 Flash leads

Gemini 3.8 Flash: 46.3 (#24), Yi-1.5-34B: 34.6 (#248)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Longer Query15081143

Writing & Preference Gemini 3.8 Flash leads

Gemini 3.8 Flash: 72.2 (#15), Yi-1.5-34B: 37.4 (#257)

BenchmarkGemini 3.8 FlashYi-1.5-34B
LMArena Text14991173
LMArena Creative Writing14921135
LMArena Multi-Turn15011153
EQ-Bench Creative Writing1748—

Frequently asked questions

Is Gemini 3.8 Flash better than Yi-1.5-34B?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 30.6 on the Noometry Index.

Is Gemini 3.8 Flash or Yi-1.5-34B better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 32.4 in the Noometry coding category.

How many benchmarks do Gemini 3.8 Flash and Yi-1.5-34B share?

18 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Yi-1.5-34B has 21.

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