Hy3 vs Hy4 preview: Specs & Benchmark Comparison
| Characteristic | Hy3 | Hy4 preview |
|---|---|---|
| Company | Tencent | Tencent |
| Release Date | July 6, 2026 | August 28, 2026 |
| Parameters | 295B | 770B |
| Multimodal | No | No |
| Average Score | 0.6 | 0.6 |
| Benchmarks | ||
| DeepSWE | 0.3 | 0.6 |
| MathArena Apex | 0.4 | 0.7 |
| Toolathlon | 0.5 | 0.7 |
| ArXivMath | 0.5 | 0.7 |
| Terminal-Bench 2.1 | 0.7 | 0.9 |
| NL2Repo | 0.5 | 0.6 |
| APEX-Agents | 0.3 | 0.4 |
| SuperChem | 0.5 | 0.7 |
| SWE-Bench Pro | 0.6 | 0.7 |
| SkillsBench | 0.6 | 0.6 |
| WideSearch | 0.8 | 0.8 |
| SWE-bench Multilingual | 0.8 | 0.8 |
| MCP Atlas | 0.8 | 0.8 |
| Humanity's Last Exam (no tools, text-only) | 0.5 | 0.4 |
| Humanity's Last Exam (with tools, text-only) | 0.5 | 0.6 |
| GPQA | 0.9 | 0.9 |
| HorizonMath | 0.1 | 0.1 |
Visual Benchmark Comparison
Hy3
Hy4 preview
DeepSWE0.3 vs 0.6
0.3
0.6
MathArena Apex0.4 vs 0.7
0.4
0.7
Toolathlon0.5 vs 0.7
0.5
0.7
ArXivMath0.5 vs 0.7
0.5
0.7
Terminal-Bench 2.10.7 vs 0.9
0.7
0.9
NL2Repo0.5 vs 0.6
0.5
0.6
APEX-Agents0.3 vs 0.4
0.3
0.4
SuperChem0.5 vs 0.7
0.5
0.7
SWE-Bench Pro0.6 vs 0.7
0.6
0.7
SkillsBench0.6 vs 0.6
0.6
0.6
WideSearch0.8 vs 0.8
0.8
0.8
SWE-bench Multilingual0.8 vs 0.8
0.8
0.8
MCP Atlas0.8 vs 0.8
0.8
0.8
Humanity's Last Exam (no tools, text-only)0.5 vs 0.4
0.5
0.4
Humanity's Last Exam (with tools, text-only)0.5 vs 0.6
0.5
0.6
Verdict
Hy4 preview leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Hy3 — 0.6, Hy4 preview — 0.6.
Recency
Hy4 preview is newer: released 8/28/2026 vs 7/6/2026.
More About These Models
Related Comparisons
Frequently Asked Questions
Which is better for coding — Hy3 or Hy4 preview?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Hy3 or Hy4 preview?
API pricing data is available on the individual model pages.
Which has a larger context window — Hy3 or Hy4 preview?
Context window data is available on the individual model pages.
The Hy3 and Hy4 preview comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Hy3 or Hy4 preview page. See also the complete list of AI model comparisons.