DeepSeek-V4-Flash-0731 vs Kimi K3: Specs & Benchmark Comparison
DeepSeek-V4-Flash-0731 is developed by DeepSeek, while Kimi K3 comes from Moonshot AI. Both were released in July 2026. Kimi K3 is the larger model at roughly 2.8 trillion parameters, against 304 billion for DeepSeek-V4-Flash-0731.
We have 4 benchmark results for DeepSeek-V4-Flash-0731 and 3 benchmark results for Kimi K3, but they were measured on different benchmarks, so there is no like-for-like scoreboard.
DeepSeek-V4-Flash-0731 is the cheaper API at $0.14 per million input tokens and $0.28 per million output tokens, roughly 21 times cheaper than Kimi K3 at $3 and $15. Both accept a context window of about 1M tokens. DeepSeek-V4-Flash-0731 accepts text as input, while Kimi K3 accepts text and images.
| Characteristic | DeepSeek-V4-Flash-0731 | Kimi K3 |
|---|---|---|
| Company | DeepSeek | Moonshot AI |
| Release Date | July 31, 2026 | July 16, 2026 |
| Parameters | 304B | 2.8T |
| Multimodal | No | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 393K | 1.0M |
| Input Price / 1M | $0.14 | $3.00 |
| Output Price / 1M | $0.28 | $15.00 |
| Average Score | 74.8% | 95.7% |
Verdict
DeepSeek-V4-Flash-0731 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.7, Kimi K3 — 1.0.
DeepSeek-V4-Flash-0731 is 42.9x cheaper: input $0.14/1M vs $3.00/1M tokens.
Same context size: 1M tokens.
DeepSeek-V4-Flash-0731 is newer: released 7/31/2026 vs 7/16/2026.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V4-Flash-0731 or Kimi K3?
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The DeepSeek-V4-Flash-0731 and Kimi K3 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 Kimi K3 page. See also the complete list of AI model comparisons.