Noometry

Model comparison

Claude 3 Haiku vs Step 3.5 Flash

Step 3.5 Flash is the stronger model overall, scoring 41.7 to 25.7 on the Noometry Index.

Last verified . 17 shared benchmarks.

Claude 3 Haiku Anthropic

25.7

Rank #333 Confirmed

Step 3.5 Flash StepFun

41.7

Rank #116 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Claude 3 Haiku scores higher in 0 categories and Step 3.5 Flash in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Step 3.5 Flash leads 40.6 to 9.2.
  • Step 3.5 Flash has downloadable open weights; the other is API-only.

Side by side

Claude 3 HaikuStep 3.5 Flash
ProviderAnthropicStepFun
Noometry Index25.741.7
Released2024-03-072026-01-29
WeightsProprietaryOpen
Context window—256K
Max output—256K
Input $ / M tokens—$0.10
Output $ / M tokens—$0.30
Results tracked3719

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

Category by category

Coding Step 3.5 Flash leads

Claude 3 Haiku: 26.1 (#320), Step 3.5 Flash: 41.7 (#106)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Coding11991436
WeirdML9.8%—
BigCodeBench Instruct39.4%—
BigCodeBench Complete50.1%—
CadEval12%—
HumanEval+68.9%—
MBPP+68.8%—

Reasoning Step 3.5 Flash leads

Claude 3 Haiku: 15.7 (#303), Step 3.5 Flash: 21.2 (#202)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Hard Prompts11741411
Kagi LLM Benchmark34.2%—
NYT Connections (extended)—28.4%
DTBench50.1%—
LMCA8.8%—
Epoch Capabilities Index118.3—
ForecastBench53.2—
WinoGrande74.2%—

Math Step 3.5 Flash leads

Claude 3 Haiku: 9.2 (#313), Step 3.5 Flash: 40.6 (#77)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Math11881408
MathArena Final-Answer Competitions—66.8%
OTIS Mock AIME 2024-20251.8%—
MATH Level 514.9%—

Knowledge Step 3.5 Flash leads

Claude 3 Haiku: 17.3 (#280), Step 3.5 Flash: 39.0 (#127)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Expert11481422
GPQA Diamond36.3%—
Confabulations34.2%—
MMLU73.8%—

Multimodal Not comparable

Claude 3 Haiku: 23.1 (#123), Step 3.5 Flash: —

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Vision950—
ScienceQA72%—

Multilingual Step 3.5 Flash leads

Claude 3 Haiku: 36.1 (#238), Step 3.5 Flash: 50.7 (#115)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Non-English11781386
LMArena Chinese11551448
LMArena French11941421
LMArena German11741404
LMArena Japanese11021353
LMArena Korean11081350
LMArena Russian12041385
LMArena Spanish11651419

Instruction Following Step 3.5 Flash leads

Claude 3 Haiku: 61.5 (#242), Step 3.5 Flash: 73.3 (#119)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Instruction Following11741385

Long Context Step 3.5 Flash leads

Claude 3 Haiku: 36.1 (#232), Step 3.5 Flash: 42.8 (#112)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Longer Query11911402

Writing & Preference Step 3.5 Flash leads

Claude 3 Haiku: 29.8 (#286), Step 3.5 Flash: 59.0 (#108)

BenchmarkClaude 3 HaikuStep 3.5 Flash
LMArena Text11951403
LMArena Creative Writing11571357
LMArena Multi-Turn11901405
EQ-Bench Creative Writing717—

Frequently asked questions

Is Claude 3 Haiku better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 41.7 to 25.7 on the Noometry Index.

Is Claude 3 Haiku or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 26.1 in the Noometry coding category.

How many benchmarks do Claude 3 Haiku and Step 3.5 Flash share?

17 benchmarks have published results for both models. Claude 3 Haiku has 37 scored results on Noometry and Step 3.5 Flash has 19.

Related comparisons

Go deeper