token.app › Compare › Kimi K3 vs DeepSeek V4 Flash 0731
Kimi K3 vs DeepSeek V4 Flash 0731
Kimi K3 leads on 4 of 4 shared benchmarks. DeepSeek V4 Flash 0731 is 4.8× cheaper per token on a blended 3:1 basis.
Head to head
Blended price uses a 3:1 input:output mix
| Kimi K3 | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | Moonshot AI | DeepSeek |
| Input $/1M | $0.239 | $0.440 |
| Output $/1M | $11.94 | $1.32 |
| Blended $/1M | $3.16 | $0.660 |
| Context window | 1.0M | 1.0M |
| Max output | 944K | 131K |
| Released | Jul 2026 | Jul 2026 |
| Licence | Open weights | Open weights |
| GPQA Diamond | 93.1% | 91.0% |
| FrontierMath T1–3 | 72.2% | 57.5% |
| FrontierMath T4 | 39.0% | 24.4% |
| OTIS Mock AIME | 97.2% | 94.4% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Kimi K3 if…
- Higher GPQA Diamond (93.1% vs 91.0%)
- Higher FrontierMath T1–3 (72.2% vs 57.5%)
- Higher FrontierMath T4 (39.0% vs 24.4%)
- Higher OTIS Mock AIME (97.2% vs 94.4%)
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.660 vs $3.16 blended
- Newer model (released Jul 2026)
FAQ
Which is better, Kimi K3 or DeepSeek V4 Flash 0731?
Across the 4 benchmarks both models have independently-run scores for, Kimi K3 leads on 4 and DeepSeek V4 Flash 0731 leads on 0. Benchmarks are one input — price and context window are on this page too.
Is Kimi K3 cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.660 versus $3.16 per million tokens blended at 3:1 input:output. Input alone: $0.239 vs $0.440. Output alone: $11.94 vs $1.32.
What context windows do Kimi K3 and DeepSeek V4 Flash 0731 have?
Kimi K3: 1,048,576 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes Kimi K3 and DeepSeek V4 Flash 0731?
Kimi K3 is made by Moonshot AI. DeepSeek V4 Flash 0731 is made by DeepSeek.