Kimi K2.8 Preview
Kimi K2.8 Preview is Moonshot AI’s public coding-agent preview, rolled out to Kimi Code users on September 11. It improves coding and agent execution and reduces overthinking relative to K2.7 Code, with low, high, and max reasoning effort and a million-token context. Official model configuration confirms text, image, and video input. The existing kimi-for-coding alias now selects this distinct model rather than K2.7 Code. No public weights, parameter count, or detailed architecture are established; the membership API and supported coding clients provide access.
2026-09-11
Detailed architecture not publicly disclosed
Proprietary
Specifications
- Architecture
- Detailed architecture not publicly disclosed
- License
- Proprietary
- Context Window
- 1,048,576 tokens
- Type
- multimodal
- Modalities
- textimagevideo
Benchmark Scores
Advanced Specifications
- Model Family
- Kimi
- API Access
- Available
- Chat Interface
- Not Available
Capabilities & Limitations
- Capabilities
- agentic codingreasoning effort controlsmultimodal inputlong-context development
- Known Limitations
- Kimi Code membership quotas and permissions govern access.The standard coding alias changed model identity; HighSpeed remains K2.7 Code.
- Notable Use Cases
- coding assistantssoftware engineering agentsrepository maintenance
- Tool Use Support
- Yes