$ diff kimi-k2-8-preview glm-5-3-flash
Kimi K2.8 Preview vs GLM-5.3-Flash
Values come from Kimi K2.8 Preview and GLM-5.3-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
- 1.0M
- weights
- open
- $/M in
- $0.15
- $/M out
- $0.5
What actually differs
- Context window
- GLM-5.3-Flash takes 1.0M against 1M — modestly more room in a single request.
- Weights
- GLM-5.3-Flash publishes weights (MIT); 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 16 days after GLM-5.3-Flash (2026-09-11 vs 2026-08-26).
Full spec
| Attribute | Kimi K2.8 Preview | GLM-5.3-Flash |
|---|---|---|
| Developer | Moonshot AI | Z.ai |
| Released | 2026-09-11 | 2026-08-26 |
| Context window | 1,000,000 | 1,048,576 (1M) |
| Pricing | not recorded | $0.15/M input · $0.03/M cached input · $0.50/M output |
| License | proprietary | MIT |
| Availability | Kimi API platform, Kimi Code, Kimi Work | Hugging Face (open weights), Z.ai API |