$ diff kimi-k2-8-preview deepseek-v4-1-flash
Kimi K2.8 Preview vs DeepSeek V4.1-Flash
Values come from Kimi K2.8 Preview and DeepSeek V4.1-Flash, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Moonshot AIKimi K2.8 Preview
- context
- 1M
- weights
- closed
- $/M in
- —
- $/M out
- —
- context
- 1M
- weights
- open
- $/M in
- $0.15
- $/M out
- $0.6
What actually differs
- Context window
- Identical — both accept 1M tokens, so context length is not a reason to pick either.
- Weights
- DeepSeek V4.1-Flash publishes weights (MIT (open-weight)); Kimi K2.8 Preview is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- Kimi K2.8 Preview shipped 1 day after DeepSeek V4.1-Flash (2026-09-11 vs 2026-09-10).
Full spec
| Attribute | Kimi K2.8 Preview | DeepSeek V4.1-Flash |
|---|---|---|
| Developer | Moonshot AI | DeepSeek |
| Released | 2026-09-11 | 2026-09-10 |
| Context window | 1,000,000 | 1,000,000 |
| Pricing | not recorded | $0.15/M input (cache miss) · $0.003/M input (cache hit) · $0.60/M output, off-peak; peak rates double — see Pricing |
| License | proprietary | MIT (open-weight) |
| Availability | Kimi API platform, Kimi Code, Kimi Work | DeepSeek API, Hugging Face (`deepseek-ai/DeepSeek-V4.1-Flash`) |