$ diff kimi-k2-8-preview laguna-s-2-1
Kimi K2.8 Preview vs Laguna S 2.1
Values come from Kimi K2.8 Preview and Laguna S 2.1, 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
- —
- $/M out
- —
What actually differs
- Context window
- Identical — both accept 1M tokens, so context length is not a reason to pick either.
- Weights
- Laguna S 2.1 publishes weights (OpenMDW-1.1 (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 52 days after Laguna S 2.1 (2026-09-11 vs 2026-07-21).
Full spec
| Attribute | Kimi K2.8 Preview | Laguna S 2.1 |
|---|---|---|
| Developer | Moonshot AI | Poolside |
| Released | 2026-09-11 | 2026-07-21 |
| Context window | 1,000,000 | 1M |
| Pricing | not recorded | not recorded |
| License | proprietary | OpenMDW-1.1 (open-weight) |
| Availability | Kimi API platform, Kimi Code, Kimi Work | Hugging Face |