Noometry

Model comparison

AI Co-Mathematician vs DeepSeek V4 Flash

DeepSeek V4 Flash has enough public results to be ranked (#35); AI Co-Mathematician does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

AI Co-Mathematician Google

58.1

Unranked Sparse

DeepSeek V4 Flash DeepSeek

53.6

Rank #35 Confirmed

Summary

  • They share 1 benchmark with published results for both. AI Co-Mathematician scores higher in 1 category and DeepSeek V4 Flash in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in math, where AI Co-Mathematician leads 72.3 to 60.3.
  • The biggest single-benchmark swing is FrontierMath Tier 4: 75.6% for AI Co-Mathematician and 24.4% for DeepSeek V4 Flash.
  • DeepSeek V4 Flash has downloadable open weights; the other is API-only.

Side by side

AI Co-MathematicianDeepSeek V4 Flash
ProviderGoogleDeepSeek
Noometry Index58.153.6
Released2026-05-082026-04-24
WeightsProprietaryOpen
Context window—1M
Max output—393K
Input $ / M tokens—$0.15
Output $ / M tokens—$0.60
Results tracked241

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Category by category

Coding Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 47.9 (#59)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
FrontierCode—18.8%
LMArena WebDev—1582
SciCode—49.9%
WeirdML—63%
LMArena Coding—1457
ALE-Bench—1,306

Reasoning Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 53.7 (#30)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
ARC-AGI-2—61.4%
SimpleBench—61.1%
Kagi LLM Benchmark—52.2%
NYT Connections (extended)—89.6%
ARC-AGI-1—89%
CritPt—16.6%
Chess Puzzles—33%
LMArena Hard Prompts—1444
Mystery Game Puzzles—34%
DTBench—90.9%
LMCA—41.7%
Epoch Capabilities Index—154.49

Math AI Co-Mathematician leads

AI Co-Mathematician: 72.3, DeepSeek V4 Flash: 60.3 (#37)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
FrontierMath Tier 475.6%24.4%
FrontierMath (Tiers 1-3)—57.5%
MathArena Final-Answer Competitions—76.5%
OTIS Mock AIME 2024-2025—94.4%
ProofBench—56%
LMArena Math—1427
FrontierMath Tier 4 (v1)47.9%—

Knowledge Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 55.4 (#48)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
GPQA Diamond—91%
SimpleQA Verified—33.6%
LMArena Expert—1441

Multilingual Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 53.0 (#72)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
LMArena Non-English—1420
LMArena Chinese—1468
LMArena French—1439
LMArena German—1418
LMArena Japanese—1406
LMArena Korean—1384
LMArena Russian—1428
LMArena Spanish—1436

Instruction Following Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 74.9 (#81)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
LMArena Instruction Following—1421

Long Context Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 43.8 (#85)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
LMArena Longer Query—1434

Writing & Preference Not comparable

AI Co-Mathematician: —, DeepSeek V4 Flash: 63.8 (#61)

BenchmarkAI Co-MathematicianDeepSeek V4 Flash
LMArena Text—1432
LMArena Creative Writing—1403
EQ-Bench Creative Writing—1559
LMArena Multi-Turn—1449

Frequently asked questions

Is AI Co-Mathematician better than DeepSeek V4 Flash?

DeepSeek V4 Flash has enough public results to be ranked (#35); AI Co-Mathematician does not yet, so treat this comparison as directional.

How many benchmarks do AI Co-Mathematician and DeepSeek V4 Flash share?

1 benchmark has published results for both models. AI Co-Mathematician has 2 scored results on Noometry and DeepSeek V4 Flash has 41.

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