DeepSeek-V4-Flash-0731 vs Hy3: Specs & Benchmark Comparison
DeepSeek-V4-Flash-0731 is developed by DeepSeek, while Hy3 comes from Tencent. Both were released in July 2026. The two are similar in size, at about 304 billion and 295 billion parameters respectively.
The two models share 4 published benchmarks. DeepSeek-V4-Flash-0731 leads on 4 of them. The widest gaps are on DeepSWE, where DeepSeek-V4-Flash-0731 scores 54.4% against 28.0%; Toolathlon, where DeepSeek-V4-Flash-0731 scores 70.0% against 48.5%. Averaged across everything we track, DeepSeek-V4-Flash-0731 sits at 57.5% and Hy3 at 57.1%.
DeepSeek-V4-Flash-0731 is available through an API at $0.14 per million input tokens with a 1M-token context window. We do not track a hosted API for Hy3, so pricing and context cannot be compared directly.
| Characteristic | DeepSeek-V4-Flash-0731 | Hy3 |
|---|---|---|
| Company | DeepSeek | Tencent |
| Release Date | July 31, 2026 | July 6, 2026 |
| Parameters | 304B | 295B |
| Multimodal | No | No |
| Context (input) | 1.0M | — |
| Context (output) | 393K | — |
| Input Price / 1M | $0.14 | — |
| Output Price / 1M | $0.28 | — |
| Average Score | 57.5% | 57.1% |
| Benchmarks | ||
| DeepSWE | 54.4% | 28.0% |
| Toolathlon | 70.0% | 48.5% |
| Terminal-Bench 2.1 | 83.0% | 71.7% |
| NL2Repo | 54.2% | 45.6% |
Visual Benchmark Comparison
Verdict
DeepSeek-V4-Flash-0731 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.6, Hy3 — 0.6.
DeepSeek-V4-Flash-0731 is newer: released 7/31/2026 vs 7/6/2026.
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Frequently Asked Questions
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The DeepSeek-V4-Flash-0731 and Hy3 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 Hy3 page. See also the complete list of AI model comparisons.