Model comparison
Claude Haiku 4.5 vs Qwen2.5 Plus 1127
Claude Haiku 4.5 is the stronger model overall, scoring 39.3 to 38.1 on the Noometry Index.
Last verified . 14 shared benchmarks.
Alibaba (Qwen)Summary
- They share 14 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 7 categories and Qwen2.5 Plus 1127 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen2.5 Plus 1127 leads 24.8 to 15.1.
Side by side
| Claude Haiku 4.5 | Qwen2.5 Plus 1127 | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 39.3 | 38.1 |
| Released | 2025-10-15 | — |
| Weights | Proprietary | Proprietary |
| Context window | 200K | — |
| Max output | 64K | — |
| Input $ / M tokens | $1 | — |
| Output $ / M tokens | $5 | — |
| Results tracked | 53 | 14 |
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Category by category
Coding Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.9 (#71), Qwen2.5 Plus 1127: 37.9 (#171)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1454 | 1314 |
| SWE-bench Verified (bash only) | 66.6% | — |
| LMArena WebDev | 1330 | — |
| SWE-bench Multilingual | 64.7% | — |
| SciCode | 43.3% | — |
| WeirdML | 45.4% | — |
| ALE-Bench | 653.48 | — |
Agentic & Tool Use Not comparable
Claude Haiku 4.5: 33.5 (#50), Qwen2.5 Plus 1127: —
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| Terminal-Bench | 35.5% | — |
| Berkeley Function Calling Leaderboard | 68.7% | — |
| DeepResearch Bench | 45.5% | — |
| BALROG | 31.2% | — |
| ExploitBench | 13.7% | — |
| Vending-Bench 2 | 458.89 | — |
Reasoning Qwen2.5 Plus 1127 leads
Claude Haiku 4.5: 15.1 (#310), Qwen2.5 Plus 1127: 24.8 (#139)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1299 |
| ARC-AGI-2 | 4% | — |
| NYT Connections (extended) | 14.3% | — |
| ARC-AGI-1 | 47.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | 8% | — |
| DTBench | 73.6% | — |
| LMCA | 30.9% | — |
| Epoch Capabilities Index | 142.42 | — |
| ForecastBench | 61.4 | — |
Math Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.0 (#69), Qwen2.5 Plus 1127: 33.5 (#175)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | 1395 | 1298 |
| OTIS Mock AIME 2024-2025 | 66.7% | — |
| Omni-MATH | 56.1% | — |
| MATH Level 5 | 96.4% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Claude Haiku 4.5 leads
Claude Haiku 4.5: 37.6 (#146), Qwen2.5 Plus 1127: 34.9 (#179)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1443 | 1289 |
| GPQA Diamond | 71.2% | — |
| SimpleQA Verified | 13.2% | — |
| MMLU-Pro | 77.7% | — |
| Vectara Hallucination Rate | 9.8% | — |
| GPQA (HELM) | 60.5% | — |
Multimodal Not comparable
Claude Haiku 4.5: 27.0 (#111), Qwen2.5 Plus 1127: —
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1420 | — |
Multilingual Claude Haiku 4.5 leads
Claude Haiku 4.5: 50.1 (#124), Qwen2.5 Plus 1127: 42.1 (#196)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1376 | 1265 |
| LMArena Chinese | 1415 | 1314 |
| LMArena German | 1377 | 1231 |
| LMArena Japanese | 1339 | 1207 |
| LMArena Russian | 1380 | 1271 |
| LMArena French | 1408 | — |
| LMArena Korean | 1346 | — |
| LMArena Spanish | 1420 | — |
Instruction Following Claude Haiku 4.5 leads
Claude Haiku 4.5: 71.6 (#144), Qwen2.5 Plus 1127: 67.4 (#194)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1414 | 1275 |
| IFEval | 80.1% | — |
Long Context Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.6 (#86), Qwen2.5 Plus 1127: 39.2 (#180)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1427 | 1292 |
Writing & Preference Claude Haiku 4.5 leads
Claude Haiku 4.5: 58.1 (#119), Qwen2.5 Plus 1127: 49.5 (#186)
| Benchmark | Claude Haiku 4.5 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1396 | 1299 |
| LMArena Creative Writing | 1371 | 1262 |
| LMArena Multi-Turn | 1409 | 1299 |
| WildBench | 83.9% | — |
| EQ-Bench 4 | 1064 | — |
Frequently asked questions
Is Claude Haiku 4.5 better than Qwen2.5 Plus 1127?
Claude Haiku 4.5 is the stronger model overall, scoring 39.3 to 38.1 on the Noometry Index.
Is Claude Haiku 4.5 or Qwen2.5 Plus 1127 better for coding?
Claude Haiku 4.5 scores higher on coding benchmarks: 43.9 versus 37.9 in the Noometry coding category.
How many benchmarks do Claude Haiku 4.5 and Qwen2.5 Plus 1127 share?
14 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and Qwen2.5 Plus 1127 has 14.