Noometry

Model comparison

Claude Opus 4.1 vs Ministral 3B

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 26.2 on the Noometry Index. Ministral 3B costs 300× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.

Last verified . 5 shared benchmarks.

Claude Opus 4.1 Anthropic

41.0

Rank #142 Confirmed

Ministral 3B Mistral AI

26.2

Rank #338 Confirmed

Summary

  • They share 5 benchmarks with published results for both. Claude Opus 4.1 scores higher in 2 categories and Ministral 3B in 1 category; 3 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Opus 4.1 leads 42.0 to 10.4.
  • The biggest single-benchmark swing is GPQA Diamond: 77.3% for Claude Opus 4.1 and 25.3% for Ministral 3B.
  • Ministral 3B is cheaper at $0.10 / $0.10 per million input/output tokens, against $15 / $75 for Claude Opus 4.1.
  • Claude Opus 4.1 accepts more context: 200K tokens versus 131K.
  • Ministral 3B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.1Ministral 3B
ProviderAnthropicMistral AI
Noometry Index41.026.2
Released2025-08-052024-10-01
WeightsProprietaryOpen
Context window200K131K
Max output32K262K
Input $ / M tokens$15$0.10
Output $ / M tokens$75$0.10
Results tracked486

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Category by category

Coding Not comparable

Claude Opus 4.1: 44.4 (#73), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
SWE-bench Verified73.3%—
LMArena WebDev1390—
WeirdML45.9%—
LMArena Coding1479—
ALE-Bench674.77—
AlgoTune1.34—

Agentic & Tool Use Not comparable

Claude Opus 4.1: 35.0 (#41), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
Terminal-Bench38%—
GDPval43.6%—
Cybench42%—
DeepResearch Bench48.3%—
LMArena Search1148—
METR Time Horizons66.8%—

Reasoning Claude Opus 4.1 leads

Claude Opus 4.1: 32.2 (#76), Ministral 3B: 18.4 (#282)

BenchmarkClaude Opus 4.1Ministral 3B
DTBench80%51.7%
LMCA37.1%5.5%
Epoch Capabilities Index144.12118.1
SimpleBench60%—
Chess Puzzles7%—
EnigmaEval7.2%—
EBR-Bench7.9%—
LMArena Hard Prompts1443—
Mystery Game Puzzles21%—
ForecastBench62—

Math Ministral 3B leads

Claude Opus 4.1: 22.3 (#277), Ministral 3B: 26.6 (#258)

BenchmarkClaude Opus 4.1Ministral 3B
FrontierMath (Tiers 1-3)12.6%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.9%—
LMArena Math1431—
MATH Level 5—14.4%
FrontierMath (Feb 2025 set)7.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Opus 4.1 leads

Claude Opus 4.1: 42.0 (#101), Ministral 3B: 10.4 (#302)

BenchmarkClaude Opus 4.1Ministral 3B
GPQA Diamond77.3%25.3%
Vectara Hallucination Rate11.8%7.3%
Humanity's Last Exam11.5%—
Confabulations17.1%—
LMArena Expert1439—

Multimodal Not comparable

Claude Opus 4.1: 26.8 (#119), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
VPCT35%—

Multilingual Not comparable

Claude Opus 4.1: 52.0 (#95), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
LMArena Non-English1405—
LMArena Chinese1427—
LMArena French1431—
LMArena German1413—
LMArena Japanese1378—
LMArena Korean1380—
LMArena Russian1422—
LMArena Spanish1448—

Instruction Following Not comparable

Claude Opus 4.1: 75.6 (#58), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
LMArena Instruction Following1435—

Long Context Not comparable

Claude Opus 4.1: 44.5 (#63), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
LMArena Longer Query1455—

Writing & Preference Not comparable

Claude Opus 4.1: 62.4 (#74), Ministral 3B: —

BenchmarkClaude Opus 4.1Ministral 3B
LMArena Text1419—
LMArena Creative Writing1412—
Short-Story Creative Writing84.7%—
LMArena Multi-Turn1444—

Frequently asked questions

Is Claude Opus 4.1 better than Ministral 3B?

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 26.2 on the Noometry Index. Ministral 3B costs 300× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.1 or Ministral 3B?

Ministral 3B is cheaper. It lists at $0.10 per million input tokens and $0.10 per million output tokens; Claude Opus 4.1 lists at $15 and $75.

Which has the bigger context window?

Claude Opus 4.1 does, with 200K tokens against 131K.

How many benchmarks do Claude Opus 4.1 and Ministral 3B share?

5 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Ministral 3B has 6.

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