Model comparison

DeepSeek V4 Flash vs Mistral Small 4

DeepSeek V4 Flash has enough public results to be ranked (#32); Mistral Small 4 does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

DeepSeek V4 Flash DeepSeek

53.6

Rank #32 Confirmed

Mistral Small 4 Mistral AI

30.2

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. DeepSeek V4 Flash scores higher in 1 category and Mistral Small 4 in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where DeepSeek V4 Flash leads 53.7 to 21.2.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 52.2% for DeepSeek V4 Flash and 40.5% for Mistral Small 4.
  • Mistral Small 4 is cheaper at $0.075 / $0.30 per million input/output tokens, against $0.15 / $0.60 for DeepSeek V4 Flash.
  • DeepSeek V4 Flash accepts more context: 1M tokens versus 262K.

Side by side

DeepSeek V4 Flash and Mistral Small 4 specifications
DeepSeek V4 FlashMistral Small 4
ProviderDeepSeekMistral AI
Noometry Index53.630.2
Released2026-04-24—
WeightsOpenOpen
Context window1M262K
Max output393K210K
Input $ / M tokens$0.15$0.075
Output $ / M tokens$0.60$0.30
Results tracked411

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Category by category

Coding Not comparable

DeepSeek V4 Flash: 47.6 (#56), Mistral Small 4: —

Coding benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
FrontierCode18.8%—
LMArena WebDev1581—
SciCode49.9%—
WeirdML63%—
LMArena Coding1457—
ALE-Bench1,306—

Reasoning DeepSeek V4 Flash leads

DeepSeek V4 Flash: 53.7 (#25), Mistral Small 4: 21.2

Reasoning benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
Kagi LLM Benchmark52.2%40.5%
ARC-AGI-261.4%—
SimpleBench61.1%—
NYT Connections (extended)89.6%—
ARC-AGI-189%—
CritPt16.6%—
Chess Puzzles33%—
LMArena Hard Prompts1443—
Mystery Game Puzzles34%—
DTBench90.9%—
LMCA41.7%—
Epoch Capabilities Index154.51—

Math Not comparable

DeepSeek V4 Flash: 60.0 (#31), Mistral Small 4: —

Math benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
FrontierMath (Tiers 1-3)57.5%—
FrontierMath Tier 424.4%—
MathArena Final-Answer Competitions76.5%—
OTIS Mock AIME 2024-202594.4%—
ProofBench56%—
LMArena Math1427—

Knowledge Not comparable

DeepSeek V4 Flash: 55.5 (#43), Mistral Small 4: —

Knowledge benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
GPQA Diamond91%—
SimpleQA Verified33.6%—
LMArena Expert1441—

Multilingual Not comparable

DeepSeek V4 Flash: 53.2 (#71), Mistral Small 4: —

Multilingual benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
LMArena Non-English1420—
LMArena Chinese1467—
LMArena French1438—
LMArena German1418—
LMArena Japanese1403—
LMArena Korean1383—
LMArena Russian1428—
LMArena Spanish1437—

Instruction Following Not comparable

DeepSeek V4 Flash: 75.1 (#76), Mistral Small 4: —

Instruction Following benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
LMArena Instruction Following1421—

Long Context Not comparable

DeepSeek V4 Flash: 43.8 (#81), Mistral Small 4: —

Long Context benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
LMArena Longer Query1435—

Writing & Preference Not comparable

DeepSeek V4 Flash: 64.0 (#59), Mistral Small 4: —

Writing & Preference benchmarks
BenchmarkDeepSeek V4 FlashMistral Small 4
LMArena Text1432—
LMArena Creative Writing1403—
EQ-Bench Creative Writing1559—
LMArena Multi-Turn1449—

Frequently asked questions

Is DeepSeek V4 Flash better than Mistral Small 4?

DeepSeek V4 Flash has enough public results to be ranked (#32); Mistral Small 4 does not yet, so treat this comparison as directional.

Which is cheaper, DeepSeek V4 Flash or Mistral Small 4?

Mistral Small 4 is cheaper. It lists at $0.075 per million input tokens and $0.30 per million output tokens; DeepSeek V4 Flash lists at $0.15 and $0.60.

Which has the bigger context window?

DeepSeek V4 Flash does, with 1M tokens against 262K.

How many benchmarks do DeepSeek V4 Flash and Mistral Small 4 share?

1 benchmark has published results for both models. DeepSeek V4 Flash has 41 scored results on Noometry and Mistral Small 4 has 1.

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