DeepSeek-V4-Flash-0731 vs Hy4 preview: Specs & Benchmark Comparison
| Characteristic | DeepSeek-V4-Flash-0731 | Hy4 preview |
|---|---|---|
| Company | DeepSeek | Tencent |
| Release Date | July 31, 2026 | August 28, 2026 |
| Parameters | 304B | 770B |
| Multimodal | No | No |
| Context (input) | 1.0M | — |
| Context (output) | 393K | — |
| Input Price / 1M | $0.14 | — |
| Output Price / 1M | $0.28 | — |
| Average Score | 0.7 | 0.6 |
| Benchmarks | ||
| Toolathlon | 0.7 | 0.7 |
| Terminal-Bench 2.1 | 0.8 | 0.9 |
| CyberGym | 0.8 | 0.8 |
Visual Benchmark Comparison
DeepSeek-V4-Flash-0731
Hy4 preview
Toolathlon0.7 vs 0.7
0.7
0.7
Terminal-Bench 2.10.8 vs 0.9
0.8
0.9
CyberGym0.8 vs 0.8
0.8
0.8
Verdict
Hy4 preview leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.7, Hy4 preview — 0.6.
Recency
Hy4 preview is newer: released 8/28/2026 vs 7/31/2026.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V4-Flash-0731 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 — DeepSeek-V4-Flash-0731 or Hy4 preview?
API pricing data is available on the individual model pages.
Which has a larger context window — DeepSeek-V4-Flash-0731 or Hy4 preview?
Context window data is available on the individual model pages.
The DeepSeek-V4-Flash-0731 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 DeepSeek-V4-Flash-0731 or Hy4 preview page. See also the complete list of AI model comparisons.