Noometry

Model comparison

Claude Opus 4.6 vs Ministral 8B

Claude Opus 4.6 is the stronger model overall, scoring 58.3 to 27.8 on the Noometry Index. Ministral 8B costs 100× less per token, which makes it the better buy when Claude Opus 4.6's lead doesn't matter for your workload.

Last verified . 15 shared benchmarks.

Claude Opus 4.6 Anthropic

58.3

Rank #18 Confirmed

Ministral 8B Mistral AI

27.8

Rank #321 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Claude Opus 4.6 scores higher in 9 categories and Ministral 8B in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Opus 4.6 leads 61.8 to 12.5.
  • The biggest single-benchmark swing is GPQA Diamond: 90.5% for Claude Opus 4.6 and 27.1% for Ministral 8B.
  • Ministral 8B is cheaper at $0.10 / $0.10 per million input/output tokens, against $5 / $25 for Claude Opus 4.6.
  • Claude Opus 4.6 accepts more context: 1M tokens versus 128K.
  • Ministral 8B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.6Ministral 8B
ProviderAnthropicMistral AI
Noometry Index58.327.8
Released2026-02-042024-10-01
WeightsProprietaryOpen
Context window1M128K
Max output128K128K
Input $ / M tokens$5$0.10
Output $ / M tokens$25$0.10
Results tracked6817

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Category by category

Coding Claude Opus 4.6 leads

Claude Opus 4.6: 57.7 (#15), Ministral 8B: 34.4 (#226)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Coding15351202
SWE-bench Verified78.7%—
FrontierCode26.6%—
SWE-bench Verified (bash only)75.6%—
LMArena WebDev1546—
SWE-bench Multilingual72%—
GSO41.2%—
WeirdML78%—
ALE-Bench996.5—
AlgoTune1.47—

Agentic & Tool Use Claude Opus 4.6 leads

Claude Opus 4.6: 51.0 (#4), Ministral 8B: 16.2 (#140)

BenchmarkClaude Opus 4.6Ministral 8B
Terminal-Bench79.8%—
APEX-Agents46.3%—
Berkeley Function Calling Leaderboard—11.1%
Remote Labor Index4.2%—
τ²-bench Banking27.3%—
Cybench93%—
DeepResearch Bench55.3%—
GBAEval44.1%—
LMArena Search1253—
METR Time Horizons78.9%—
Vending-Bench 28,018—

Reasoning Claude Opus 4.6 leads

Claude Opus 4.6: 57.7 (#21), Ministral 8B: 17.7 (#279)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Hard Prompts15271191
DTBench91.2%45.7%
ARC-AGI-269.2%—
SimpleBench67.6%—
Kagi LLM Benchmark83.6%—
NYT Connections (extended)92.1%—
ARC-AGI-194%—
Chess Puzzles17%—
EnigmaEval7.6%—
Thematic Generalization80.6%—
EBR-Bench12.7%—
Mystery Game Puzzles25%—
LMCA55.8%—
Epoch Capabilities Index155.36—
ForecastBench60—

Math Claude Opus 4.6 leads

Claude Opus 4.6: 62.7 (#25), Ministral 8B: 23.7 (#262)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Math15171188
FrontierMath (Tiers 1-3)66%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions78.5%—
OTIS Mock AIME 2024-202594.4%—
ProofBench50%—
MATH Level 5—14.9%
FrontierMath (Feb 2025 set)40.7%—
FrontierMath Tier 4 (v1)22.9%—

Knowledge Claude Opus 4.6 leads

Claude Opus 4.6: 61.8 (#23), Ministral 8B: 12.5 (#292)

BenchmarkClaude Opus 4.6Ministral 8B
GPQA Diamond90.5%27.1%
Vectara Hallucination Rate12.2%7.4%
LMArena Expert15461170
Humanity's Last Exam34.4%—
SimpleQA Verified47%—

Multimodal Not comparable

Claude Opus 4.6: 37.0 (#67), Ministral 8B: —

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Vision1316—
Furniture Assembly28.3%—
LMArena Document1507—

Multilingual Claude Opus 4.6 leads

Claude Opus 4.6: 58.2 (#4), Ministral 8B: 35.3 (#242)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Non-English14901165
LMArena Chinese15511193
LMArena Russian14971195
LMArena French1513—
LMArena German1504—
LMArena Japanese1484—
LMArena Korean1465—
LMArena Spanish1512—

Instruction Following Claude Opus 4.6 leads

Claude Opus 4.6: 79.7 (#3), Ministral 8B: 60.7 (#245)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Instruction Following15231161

Long Context Claude Opus 4.6 leads

Claude Opus 4.6: 48.1 (#13), Ministral 8B: 36.7 (#222)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Longer Query15201212
CL-bench20.7%—
CL-bench Life17%—

Writing & Preference Claude Opus 4.6 leads

Claude Opus 4.6: 73.7 (#9), Ministral 8B: 39.8 (#241)

BenchmarkClaude Opus 4.6Ministral 8B
LMArena Text15041191
LMArena Creative Writing15061175
LMArena Multi-Turn15141166
EQ-Bench Creative Writing1809—
EQ-Bench 41223—

Frequently asked questions

Is Claude Opus 4.6 better than Ministral 8B?

Claude Opus 4.6 is the stronger model overall, scoring 58.3 to 27.8 on the Noometry Index. Ministral 8B costs 100× less per token, which makes it the better buy when Claude Opus 4.6's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.6 or Ministral 8B?

Ministral 8B is cheaper. It lists at $0.10 per million input tokens and $0.10 per million output tokens; Claude Opus 4.6 lists at $5 and $25.

Is Claude Opus 4.6 or Ministral 8B better for coding?

Claude Opus 4.6 scores higher on coding benchmarks: 57.7 versus 34.4 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 4.6 does, with 1M tokens against 128K.

How many benchmarks do Claude Opus 4.6 and Ministral 8B share?

15 benchmarks have published results for both models. Claude Opus 4.6 has 68 scored results on Noometry and Ministral 8B has 17.

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