Noometry

Model comparison

C4ai Aya Expanse 8b vs DeepSeek V4 Flash

DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 34.9 on the Noometry Index.

Last verified . 14 shared benchmarks.

C4ai Aya Expanse 8b Cohere

34.9

Rank #229 Confirmed

DeepSeek V4 Flash DeepSeek

53.6

Rank #35 Confirmed

Summary

  • They share 14 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 0 categories and DeepSeek V4 Flash in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where DeepSeek V4 Flash leads 53.7 to 22.4.

Side by side

C4ai Aya Expanse 8bDeepSeek V4 Flash
ProviderCohereDeepSeek
Noometry Index34.953.6
Released—2026-04-24
WeightsOpenOpen
Context window—1M
Max output—393K
Input $ / M tokens—$0.15
Output $ / M tokens—$0.60
Results tracked1541

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Category by category

Coding DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 33.8 (#252), DeepSeek V4 Flash: 47.9 (#59)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Coding11601457
FrontierCode—18.8%
LMArena WebDev—1582
SciCode—49.9%
WeirdML—63%
ALE-Bench—1,306

Reasoning DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 22.4 (#197), DeepSeek V4 Flash: 53.7 (#30)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Hard Prompts11561444
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%
Mystery Game Puzzles—34%
DTBench—90.9%
LMCA—41.7%
Epoch Capabilities Index—154.49

Math DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 33.3 (#203), DeepSeek V4 Flash: 60.3 (#37)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Math11681427
FrontierMath (Tiers 1-3)—57.5%
FrontierMath Tier 4—24.4%
MathArena Final-Answer Competitions—76.5%
OTIS Mock AIME 2024-2025—94.4%
ProofBench—56%

Knowledge DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 33.6 (#201), DeepSeek V4 Flash: 55.4 (#48)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Expert11531441
GPQA Diamond—91%
SimpleQA Verified—33.6%
Vectara Hallucination Rate9.5%—

Multilingual DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 36.1 (#242), DeepSeek V4 Flash: 53.0 (#72)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Non-English11801420
LMArena Chinese11811468
LMArena German11881418
LMArena Japanese11201406
LMArena Russian11971428
LMArena French—1439
LMArena Korean—1384
LMArena Spanish—1436

Instruction Following DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 60.1 (#253), DeepSeek V4 Flash: 74.9 (#81)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Instruction Following11551421

Long Context DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 36.1 (#236), DeepSeek V4 Flash: 43.8 (#85)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Longer Query11911434

Writing & Preference DeepSeek V4 Flash leads

C4ai Aya Expanse 8b: 39.0 (#250), DeepSeek V4 Flash: 63.8 (#61)

BenchmarkC4ai Aya Expanse 8bDeepSeek V4 Flash
LMArena Text11851432
LMArena Creative Writing11681403
LMArena Multi-Turn11601449
EQ-Bench Creative Writing—1559

Frequently asked questions

Is C4ai Aya Expanse 8b better than DeepSeek V4 Flash?

DeepSeek V4 Flash is the stronger model overall, scoring 53.6 to 34.9 on the Noometry Index.

Is C4ai Aya Expanse 8b or DeepSeek V4 Flash better for coding?

DeepSeek V4 Flash scores higher on coding benchmarks: 47.9 versus 33.8 in the Noometry coding category.

How many benchmarks do C4ai Aya Expanse 8b and DeepSeek V4 Flash share?

14 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and DeepSeek V4 Flash has 41.

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