Noometry

Model comparison

Claude Sonnet 4.5 vs Ministral 8B

Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 28.2 on the Noometry Index. Ministral 8B costs 40× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.

Last verified . 17 shared benchmarks.

Claude Sonnet 4.5 Anthropic

44.1

Rank #81 Confirmed

Ministral 8B Mistral AI

28.2

Rank #325 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Claude Sonnet 4.5 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 Sonnet 4.5 leads 48.4 to 12.6.
  • The biggest single-benchmark swing is MATH Level 5: 97.7% for Claude Sonnet 4.5 and 14.9% for Ministral 8B.
  • Ministral 8B is cheaper at $0.15 / $0.15 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.5.
  • Ministral 8B accepts more context: 262K tokens versus 200K.
  • Ministral 8B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 4.5Ministral 8B
ProviderAnthropicMistral AI
Noometry Index44.128.2
Released2025-09-292024-10-01
WeightsProprietaryOpen
Context window200K262K
Max output64K262K
Input $ / M tokens$3$0.15
Output $ / M tokens$15$0.15
Results tracked7317

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

Category by category

Coding Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 47.3 (#61), Ministral 8B: 35.0 (#230)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Coding14891202
SWE-bench Verified71.3%—
SWE-bench Verified (bash only)71.4%—
LMArena WebDev1393—
SWE-bench Multilingual67%—
SciCode44.7%—
GSO14.7%—
WeirdML47.7%—
ALE-Bench796.15—
AlgoTune1.52—

Agentic & Tool Use Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 38.3 (#32), Ministral 8B: 16.4 (#148)

BenchmarkClaude Sonnet 4.5Ministral 8B
Berkeley Function Calling Leaderboard73.2%11.1%
Terminal-Bench46.5%—
GDPval42.5%—
Remote Labor Index2.1%—
τ²-bench Airline72%—
τ²-bench Banking25.3%—
τ²-bench Retail72.4%—
τ²-bench Telecom84.9%—
Cybench60%—
DeepResearch Bench52.6%—
OSWorld62.9%—
LMArena Search1159—
METR Time Horizons67.4%—
Vending-Bench 23,839—

Reasoning Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 26.9 (#125), Ministral 8B: 18.4 (#281)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Hard Prompts14621191
DTBench83.2%45.7%
ARC-AGI-213.6%—
SimpleBench54.3%—
Kagi LLM Benchmark57.9%—
NYT Connections (extended)37.3%—
ARC-AGI-163.7%—
CritPt1.1%—
Chess Puzzles12%—
EnigmaEval6%—
EBR-Bench2.4%—
Mystery Game Puzzles17%—
LMCA38.8%—
Epoch Capabilities Index146.84—
ForecastBench61.9—

Math Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 32.3 (#216), Ministral 8B: 25.7 (#267)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Math14491188
MATH Level 597.7%14.9%
FrontierMath (Tiers 1-3)23.9%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202577.8%—
ProofBench19%—
Omni-MATH55.3%—
FrontierMath (Feb 2025 set)15.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 48.4 (#76), Ministral 8B: 12.6 (#297)

BenchmarkClaude Sonnet 4.5Ministral 8B
GPQA Diamond82.3%27.1%
Vectara Hallucination Rate12%7.4%
LMArena Expert14821170
Humanity's Last Exam13.7%—
SimpleQA Verified30.7%—
MMLU-Pro86.9%—
GPQA (HELM)68.6%—

Multimodal Not comparable

Claude Sonnet 4.5: 34.8 (#89), Ministral 8B: —

BenchmarkClaude Sonnet 4.5Ministral 8B
VPCT39.8%—
LMArena Document1450—

Multilingual Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 53.4 (#69), Ministral 8B: 35.1 (#247)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Non-English14251165
LMArena Chinese14591193
LMArena Russian14371195
LMArena French1458—
LMArena German1427—
LMArena Japanese1390—
LMArena Korean1403—
LMArena Spanish1457—

Instruction Following Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 75.0 (#78), Ministral 8B: 60.5 (#250)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Instruction Following14591161
IFEval85%—

Long Context Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 45.2 (#46), Ministral 8B: 36.7 (#227)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Longer Query14761212

Writing & Preference Claude Sonnet 4.5 leads

Claude Sonnet 4.5: 66.5 (#34), Ministral 8B: 39.6 (#246)

BenchmarkClaude Sonnet 4.5Ministral 8B
LMArena Text14391191
LMArena Creative Writing14421175
LMArena Multi-Turn14651166
EQ-Bench Creative Writing1678—
WildBench85.4%—

Frequently asked questions

Is Claude Sonnet 4.5 better than Ministral 8B?

Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 28.2 on the Noometry Index. Ministral 8B costs 40× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 4.5 or Ministral 8B?

Ministral 8B is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; Claude Sonnet 4.5 lists at $3 and $15.

Is Claude Sonnet 4.5 or Ministral 8B better for coding?

Claude Sonnet 4.5 scores higher on coding benchmarks: 47.3 versus 35.0 in the Noometry coding category.

Which has the bigger context window?

Ministral 8B does, with 262K tokens against 200K.

How many benchmarks do Claude Sonnet 4.5 and Ministral 8B share?

17 benchmarks have published results for both models. Claude Sonnet 4.5 has 73 scored results on Noometry and Ministral 8B has 17.

Related comparisons

Go deeper