Kimi is the AI assistant developed by Moonshot AI, a Beijing-based company that built its reputation on long-context processing long before that became standard. The platform runs on Kimi K2.6, an open-weight Mixture-of-Experts model released in April 2026, and it has made real inroads among developers looking for frontier-quality AI at a lower cost than OpenAI or Anthropic.
Two things set Kimi apart. Its API pricing sits around $0.55 per million input tokens against GPT-5.4's much higher rates, and its Agent Swarm architecture can coordinate up to 300 parallel sub-agents for large-scale automated workflows. The platform also covers the full office productivity stack with Slides, Docs, Sheets, and a website builder under one subscription.