DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro
A side-by-side comparison of DeepSeek V4.1 Flash 1017 from DeepSeek and Kimi K3.1 Pro from Moonshot AI, using published pricing, context windows, supported inputs, and release dates.
- DeepSeek V4.1 Flash 1017 input
- $0.3
- Kimi K3.1 Pro input
- $2
Key differences
DeepSeek V4.1 Flash 1017 is 85% cheaper on input tokens ($0.3 vs $2 per 1M).
Kimi K3.1 Pro is the newer release (Oct 23, 2026, vs Oct 17, 2026).
DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro specs
| Spec | DeepSeek V4.1 Flash 1017 | Kimi K3.1 Pro |
|---|---|---|
| Provider | DeepSeek | Moonshot AI |
| Released | Oct 17, 2026 | Oct 23, 2026 |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Input price / 1M tokens | $0.3 | $2 |
| Output price / 1M tokens | $1.2 | $10 |
| 10K in + 1K out request | $0.0042 | $0.03 |
| Accepts | image, text | image, text, video |
| Produces | text | text |
| Tool calling | Yes | Yes |
| Structured outputs | Yes | Yes |
| Reasoning | Yes | Yes |
| Popularity | 65/100 | 41/100 |
Highlighted values are better on that spec: lower price, larger context window, newer release, or higher popularity. Prices in USD per 1M tokens as listed on OpenRouter.
DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro questions
Is DeepSeek V4.1 Flash 1017 or Kimi K3.1 Pro cheaper?
DeepSeek V4.1 Flash 1017 has the lower listed input price ($0.3 per million tokens). For a request with 10,000 input and 1,000 output tokens, DeepSeek V4.1 Flash 1017 costs about $0.0042 and Kimi K3.1 Pro about $0.03.
Which model should I choose?
Pick the cheaper model for high-volume, simpler tasks, and test both on a sample of your real prompts before committing. Price and context size do not measure output quality on your specific workload.