From the source
Kimi says K3.1 Pro is now fully rolled out in Kimi Code, its coding tool available through desktop, command-line and editor clients.
- The model documentation lists a 1M-token context window for eligible plans, extending Kimi's long-context work into developer workflows where session handling and quota use decide whether a coding agent is practical.
- A faster tier, K3.1 Pro Highspeed, is also listed: Moonshot says it generates output about two to three times faster while consuming roughly twice the quota.
- The trade-off gives developers a choice between speed and how far their quota stretches.