Model comparison

DeepSeek-V3.1 vs Molmo 2 8b

DeepSeek-V3.1 is the stronger model overall, scoring 42.8 to 39.1 on the Noometry Index.

Last verified . 4 shared benchmarks.

DeepSeek-V3.1 DeepSeek

42.8

Rank #108 Confirmed

Summary

  • They share 4 benchmarks with published results for both. DeepSeek-V3.1 scores higher in 4 categories and Molmo 2 8b in 0 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where DeepSeek-V3.1 leads 60.3 to 49.4.

Side by side

DeepSeek-V3.1 and Molmo 2 8b specifications
DeepSeek-V3.1Molmo 2 8b
ProviderDeepSeekAllen Institute for AI (Ai2)
Noometry Index42.839.1
Released2025-08-21—
WeightsOpenOpen
Context window164K—
Max output8K—
Input $ / M tokens$0.25—
Output $ / M tokens$0.95—
Results tracked275

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Not comparable

DeepSeek-V3.1: 40.3 (#144), Molmo 2 8b: —

Coding benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
WeirdML38.4%—
LMArena Coding1417—

Reasoning DeepSeek-V3.1 leads

DeepSeek-V3.1: 27.9 (#110), Molmo 2 8b: 25.6 (#146)

Reasoning benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Hard Prompts14171287
SimpleBench40%—
Kagi LLM Benchmark53.2%—
DTBench82.7%—
LMCA24.3%—
Epoch Capabilities Index139.92—
ForecastBench58—

Math Not comparable

DeepSeek-V3.1: 38.9 (#122), Molmo 2 8b: —

Math benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Math1420—

Knowledge Not comparable

DeepSeek-V3.1: 43.7 (#90), Molmo 2 8b: —

Knowledge benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
Vectara Hallucination Rate5.5%—
LMArena Expert1405—

Multimodal Not comparable

DeepSeek-V3.1: —, Molmo 2 8b: 30.2 (#112)

Multimodal benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Vision—1081

Multilingual DeepSeek-V3.1 leads

DeepSeek-V3.1: 51.6 (#106), Molmo 2 8b: 42.7 (#190)

Multilingual benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Non-English14001276
LMArena Chinese1469—
LMArena French1447—
LMArena German1411—
LMArena Japanese1378—
LMArena Korean1337—
LMArena Russian1405—
LMArena Spanish1431—

Instruction Following DeepSeek-V3.1 leads

DeepSeek-V3.1: 73.9 (#110), Molmo 2 8b: 67.0 (#201)

Instruction Following benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Instruction Following14001270

Long Context Not comparable

DeepSeek-V3.1: 36.3 (#232), Molmo 2 8b: —

Long Context benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
Fiction.LiveBench52.8%—
LMArena Longer Query1422—

Writing & Preference DeepSeek-V3.1 leads

DeepSeek-V3.1: 60.3 (#98), Molmo 2 8b: 49.4 (#191)

Writing & Preference benchmarks
BenchmarkDeepSeek-V3.1Molmo 2 8b
LMArena Text14201288
LMArena Creative Writing1401—
EQ-Bench Creative Writing1436—
LMArena Multi-Turn1408—

Frequently asked questions

Is DeepSeek-V3.1 better than Molmo 2 8b?

DeepSeek-V3.1 is the stronger model overall, scoring 42.8 to 39.1 on the Noometry Index.

How many benchmarks do DeepSeek-V3.1 and Molmo 2 8b share?

4 benchmarks have published results for both models. DeepSeek-V3.1 has 27 scored results on Noometry and Molmo 2 8b has 5.

Related comparisons

Go deeper