Noometry

Model comparison

Gemini 3.8 Flash vs Molmo 2 8b

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 39.1 on the Noometry Index.

Last verified . 5 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Molmo 2 8b Allen Institute for AI (Ai2)

39.1

Rank #174 Confirmed

Summary

  • They share 5 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 5 categories and Molmo 2 8b in 0 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 25.6.
  • Molmo 2 8b has downloadable open weights; the other is API-only.

Side by side

Gemini 3.8 FlashMolmo 2 8b
ProviderGoogleAllen Institute for AI (Ai2)
Noometry Index61.839.1
Released2026-09-02—
WeightsProprietaryOpen
Context window1.05M—
Max output66K—
Input $ / M tokens$0.75—
Output $ / M tokens$3.75—
Results tracked505

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Category by category

Coding Not comparable

Gemini 3.8 Flash: 59.2 (#15), Molmo 2 8b: —

BenchmarkGemini 3.8 FlashMolmo 2 8b
DeepSWE73.8%—
FrontierCode41.2%—
CursorBench39.6%—
LMArena WebDev1584—
FrontierSWE19.6%—
SciCode56.6%—
WeirdML84.8%—
LMArena Coding1510—
ALE-Bench1,270—

Agentic & Tool Use Not comparable

Gemini 3.8 Flash: 41.8 (#21), Molmo 2 8b: —

BenchmarkGemini 3.8 FlashMolmo 2 8b
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), Molmo 2 8b: 25.6 (#146)

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Hard Prompts15081287
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 Not comparable

Gemini 3.8 Flash: 65.3 (#28), Molmo 2 8b: —

BenchmarkGemini 3.8 FlashMolmo 2 8b
FrontierMath (Tiers 1-3)68.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202598.9%—
ProofBench48%—
LMArena Math1528—

Knowledge Not comparable

Gemini 3.8 Flash: 74.8 (#2), Molmo 2 8b: —

BenchmarkGemini 3.8 FlashMolmo 2 8b
GPQA Diamond95.4%—
Humanity's Last Exam44.5%—
SimpleQA Verified69.7%—
LMArena Expert1524—

Multimodal Gemini 3.8 Flash leads

Gemini 3.8 Flash: 40.7 (#45), Molmo 2 8b: 30.2 (#112)

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Vision13141081
Blueprint-Bench 238.6%—
Furniture Assembly31.7%—

Multilingual Gemini 3.8 Flash leads

Gemini 3.8 Flash: 58.0 (#5), Molmo 2 8b: 42.7 (#190)

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Non-English14911276
LMArena Chinese1554—
LMArena French1498—
LMArena German1493—
LMArena Japanese1502—
LMArena Korean1459—
LMArena Russian1515—
LMArena Spanish1485—

Instruction Following Gemini 3.8 Flash leads

Gemini 3.8 Flash: 78.0 (#13), Molmo 2 8b: 67.0 (#201)

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Instruction Following14901270

Long Context Not comparable

Gemini 3.8 Flash: 46.3 (#24), Molmo 2 8b: —

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Longer Query1508—

Writing & Preference Gemini 3.8 Flash leads

Gemini 3.8 Flash: 72.2 (#15), Molmo 2 8b: 49.4 (#191)

BenchmarkGemini 3.8 FlashMolmo 2 8b
LMArena Text14991288
LMArena Creative Writing1492—
EQ-Bench Creative Writing1748—
LMArena Multi-Turn1501—

Frequently asked questions

Is Gemini 3.8 Flash better than Molmo 2 8b?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 39.1 on the Noometry Index.

How many benchmarks do Gemini 3.8 Flash and Molmo 2 8b share?

5 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Molmo 2 8b has 5.

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