Model comparison
Claude Haiku 5.5 vs Yi-1.5-34B
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 30.6 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Claude Haiku 5.5 scores higher in 4 categories and Yi-1.5-34B in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 27.5.
- The biggest single-benchmark swing is GPQA Diamond: 89.6% for Claude Haiku 5.5 and 32% for Yi-1.5-34B.
- Yi-1.5-34B has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | Yi-1.5-34B | |
|---|---|---|
| Provider | Anthropic | 01.AI |
| Noometry Index | 49.5 | 30.6 |
| Released | 2026-10-07 | 2024-05-13 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 9 | 21 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Yi-1.5-34B: 32.4 (#272)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| LMArena WebDev | 1587 | — |
| BigCodeBench Instruct | — | 33.9% |
| LMArena Coding | — | 1169 |
| BigCodeBench Complete | — | 43.8% |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Yi-1.5-34B: 22.5 (#191)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1160 |
| Mystery Game Puzzles | 30% | — |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Yi-1.5-34B: 27.5 (#249)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| LMArena Math | — | 1182 |
| MATH Level 5 | — | 25.5% |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Yi-1.5-34B: 14.8 (#295)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | 89.6% | 32% |
| SimpleQA Verified | 23.8% | — |
| LMArena Expert | — | 1144 |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), Yi-1.5-34B: —
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Yi-1.5-34B: 32.3 (#256)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | — | 1121 |
| LMArena Chinese | — | 1213 |
| LMArena French | — | 1156 |
| LMArena German | — | 1111 |
| LMArena Japanese | — | 1021 |
| LMArena Korean | — | 1005 |
| LMArena Russian | — | 1091 |
| LMArena Spanish | — | 1121 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Yi-1.5-34B: 59.2 (#257)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | — | 1139 |
Long Context Not comparable
Claude Haiku 5.5: —, Yi-1.5-34B: 34.6 (#248)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | — | 1143 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Yi-1.5-34B: 37.4 (#257)
| Benchmark | Claude Haiku 5.5 | Yi-1.5-34B |
|---|---|---|
| LMArena Text | — | 1173 |
| LMArena Creative Writing | — | 1135 |
| LMArena Multi-Turn | — | 1153 |
Frequently asked questions
Is Claude Haiku 5.5 better than Yi-1.5-34B?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 30.6 on the Noometry Index.
Is Claude Haiku 5.5 or Yi-1.5-34B better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 32.4 in the Noometry coding category.
How many benchmarks do Claude Haiku 5.5 and Yi-1.5-34B share?
1 benchmark has published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Yi-1.5-34B has 21.