Model comparison
Claude 3.5 Sonnet vs Hy4 preview
Hy4 preview is the stronger model overall, scoring 45.3 to 34.6 on the Noometry Index.
Last verified . 0 shared benchmarks.
TencentSummary
- The widest gap is in math, where Hy4 preview leads 55.7 to 19.2.
- Hy4 preview has downloadable open weights; the other is API-only.
Side by side
| Claude 3.5 Sonnet | Hy4 preview | |
|---|---|---|
| Provider | Anthropic | Tencent |
| Noometry Index | 34.6 | 45.3 |
| Released | 2024-06-20 | 2026-08-28 |
| Weights | Proprietary | Open |
| Context window | — | 1.05M |
| Max output | — | 64K |
| Input $ / M tokens | — | $0.83 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 60 | 3 |
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Category by category
Coding Hy4 preview leads
Claude 3.5 Sonnet: 39.0 (#165), Hy4 preview: 51.6 (#38)
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| Aider Polyglot | 51.6% | — |
| LMArena WebDev | — | 1632 |
| GSO | 4.6% | — |
| WeirdML | 40% | — |
| BigCodeBench Instruct | 46.8% | — |
| LiveBench Coding | 67.1% | — |
| LMArena Coding | 1342 | — |
| BigCodeBench Complete | 58.6% | — |
| CadEval | 48% | — |
| HumanEval+ | 81.7% | — |
| MBPP+ | 74.3% | — |
Agentic & Tool Use Not comparable
Claude 3.5 Sonnet: 32.3 (#67), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| TheAgentCompany | 24% | — |
| Cybench | 17.5% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |
Reasoning Hy4 preview leads
Claude 3.5 Sonnet: 23.1 (#183), Hy4 preview: 31.9 (#79)
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| SimpleBench | 41.4% | — |
| NYT Connections (extended) | — | 68.2% |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LMArena Hard Prompts | 1305 | — |
| DTBench | 67.8% | — |
| LiveBench Data Analysis | 55% | — |
| Epoch Capabilities Index | 133.55 | — |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |
Math Hy4 preview leads
Claude 3.5 Sonnet: 19.2 (#288), Hy4 preview: 55.7 (#42)
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | — |
| ProofBench | — | 75% |
| Omni-MATH | 27.6% | — |
| LiveBench Math | 52.3% | — |
| LMArena Math | 1307 | — |
| MATH Level 5 | 56.9% | — |
| FrontierMath (Feb 2025 set) | 2.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Not comparable
Claude 3.5 Sonnet: 28.6 (#245), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| GPQA Diamond | 55.3% | — |
| Humanity's Last Exam | 4.1% | — |
| MMLU-Pro | 77.7% | — |
| Confabulations | 19.9% | — |
| GPQA (HELM) | 56.5% | — |
| LMArena Expert | 1265 | — |
| MMLU | 87.3% | — |
Multimodal Not comparable
Claude 3.5 Sonnet: 26.5 (#120), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| LMArena Vision | 1125 | — |
| Video-MME | 60% | — |
| GeoBench | 62% | — |
| VPCT | 33% | — |
Multilingual Not comparable
Claude 3.5 Sonnet: 43.2 (#185), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| LMArena Non-English | 1283 | — |
| LMArena Chinese | 1272 | — |
| LMArena French | 1305 | — |
| LMArena German | 1297 | — |
| LMArena Japanese | 1234 | — |
| LMArena Korean | 1200 | — |
| LMArena Russian | 1306 | — |
| LMArena Spanish | 1290 | — |
Instruction Following Not comparable
Claude 3.5 Sonnet: 68.8 (#182), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| LiveBench Instruction Following | 69.3% | — |
| IFEval | 85.5% | — |
| LMArena Instruction Following | 1297 | — |
Long Context Not comparable
Claude 3.5 Sonnet: 39.9 (#167), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| LMArena Longer Query | 1311 | — |
Writing & Preference Not comparable
Claude 3.5 Sonnet: 52.9 (#164), Hy4 preview: —
| Benchmark | Claude 3.5 Sonnet | Hy4 preview |
|---|---|---|
| LMArena Text | 1298 | — |
| LMArena Creative Writing | 1292 | — |
| Short-Story Creative Writing | 80.3% | — |
| EQ-Bench Creative Writing | 1451 | — |
| WildBench | 79.2% | — |
| LMArena Multi-Turn | 1326 | — |
| LiveBench Language | 53.8% | — |
Frequently asked questions
Is Claude 3.5 Sonnet better than Hy4 preview?
Hy4 preview is the stronger model overall, scoring 45.3 to 34.6 on the Noometry Index.
Is Claude 3.5 Sonnet or Hy4 preview better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 39.0 in the Noometry coding category.
How many benchmarks do Claude 3.5 Sonnet and Hy4 preview share?
0 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Hy4 preview has 3.