Noometry

Model comparison

Claude Haiku 4.5 vs Qwen3.5 Plus

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 39.5 on the Noometry Index.

Last verified . 12 shared benchmarks.

Claude Haiku 4.5 Anthropic

39.5

Rank #165 Confirmed

Qwen3.5 Plus Alibaba (Qwen)

42.9

Rank #106 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 1 category and Qwen3.5 Plus in 3 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Qwen3.5 Plus leads 32.8 to 15.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 66.7% for Claude Haiku 4.5 and 86.7% for Qwen3.5 Plus.
  • Qwen3.5 Plus is cheaper at $0.40 / $2.40 per million input/output tokens, against $1 / $5 for Claude Haiku 4.5.
  • Qwen3.5 Plus accepts more context: 1M tokens versus 200K.

Side by side

Claude Haiku 4.5Qwen3.5 Plus
ProviderAnthropicAlibaba (Qwen)
Noometry Index39.542.9
Released2025-10-152026-02-16
WeightsProprietaryProprietary
Context window200K1M
Max output64K66K
Input $ / M tokens$1$0.40
Output $ / M tokens$5$2.40
Results tracked5315

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Category by category

Coding Not comparable

Claude Haiku 4.5: 44.0 (#78), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
ALE-Bench653.48621.92
SWE-bench Verified (bash only)66.6%—
LMArena WebDev1330—
SWE-bench Multilingual64.7%—
SciCode43.3%—
WeirdML45.4%—
LMArena Coding1453—

Agentic & Tool Use Not comparable

Claude Haiku 4.5: 33.6 (#52), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
Vending-Bench 2458.890.54
Terminal-Bench35.5%—
Berkeley Function Calling Leaderboard68.7%—
DeepResearch Bench45.5%—
BALROG31.2%—
ExploitBench13.7%—

Reasoning Qwen3.5 Plus leads

Claude Haiku 4.5: 15.1 (#320), Qwen3.5 Plus: 32.8 (#74)

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
Chess Puzzles8%22%
DTBench73.6%80.5%
LMCA30.9%36.4%
Epoch Capabilities Index142.41146.78
ARC-AGI-24%—
NYT Connections (extended)14.3%—
ARC-AGI-147.7%—
CritPt0%—
LMArena Hard Prompts1420—
Mystery Game Puzzles—17%
ForecastBench61.4—

Math Qwen3.5 Plus leads

Claude Haiku 4.5: 44.9 (#78), Qwen3.5 Plus: 49.6 (#61)

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
OTIS Mock AIME 2024-202566.7%86.7%
FrontierMath (Feb 2025 set)5.9%21%
FrontierMath Tier 4 (v1)2.1%2.1%
Omni-MATH56.1%—
LMArena Math1396—
MATH Level 596.4%—

Knowledge Qwen3.5 Plus leads

Claude Haiku 4.5: 37.7 (#153), Qwen3.5 Plus: 46.0 (#83)

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
GPQA Diamond71.2%84.8%
SimpleQA Verified13.2%25.4%
Vectara Hallucination Rate9.8%10.7%
MMLU-Pro77.7%—
GPQA (HELM)60.5%—
LMArena Expert1442—

Multimodal Not comparable

Claude Haiku 4.5: 26.8 (#118), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
Blueprint-Bench 20%—
LMArena Document1420—

Multilingual Not comparable

Claude Haiku 4.5: 49.9 (#129), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
LMArena Non-English1377—
LMArena Chinese1417—
LMArena French1408—
LMArena German1375—
LMArena Japanese1339—
LMArena Korean1347—
LMArena Russian1381—
LMArena Spanish1420—

Instruction Following Not comparable

Claude Haiku 4.5: 71.4 (#149), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
IFEval80.1%—
LMArena Instruction Following1414—

Long Context Too close to call

Claude Haiku 4.5: 43.6 (#92), Qwen3.5 Plus: 43.0 (#113)

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
CL-bench—19.8%
CL-bench Life—12.4%
LMArena Longer Query1427—

Writing & Preference Not comparable

Claude Haiku 4.5: 57.9 (#123), Qwen3.5 Plus: —

BenchmarkClaude Haiku 4.5Qwen3.5 Plus
LMArena Text1396—
LMArena Creative Writing1372—
WildBench83.9%—
EQ-Bench 41064—
LMArena Multi-Turn1409—

Frequently asked questions

Is Claude Haiku 4.5 better than Qwen3.5 Plus?

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 39.5 on the Noometry Index.

Which is cheaper, Claude Haiku 4.5 or Qwen3.5 Plus?

Qwen3.5 Plus is cheaper. It lists at $0.40 per million input tokens and $2.40 per million output tokens; Claude Haiku 4.5 lists at $1 and $5.

Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 200K.

How many benchmarks do Claude Haiku 4.5 and Qwen3.5 Plus share?

12 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and Qwen3.5 Plus has 15.

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