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Moonshot AI

Moonshot AI is the Beijing company behind Kimi. It began in spring 2023, and its published business license records incorporation on 17 April 2023. Founder and CEO Yang Zhilin leads the company.

Explore models

Models & tools

  • A K3-derived multimodal model with sparse attention, 2.8T total parameters and 104B active parameters.

    Launch date not confirmedAPI · Downloadable

  • A long-context Kimi model with always-on reasoning and a million-token API context.

    Launch date not confirmedAPI · Downloadable

  • A text, image and video model with selectable thinking and non-thinking modes.

    Launch date not confirmedDeprecated API; check access detailsAPI · Downloadable

  • A coding-focused multimodal model with required thinking mode and downloadable weights.

    Launch date not confirmedDeprecated API; check access detailsAPI · Downloadable

  • Multimodal K2 successor that combines image and video understanding with coding and reasoning.

    Launch date Downloadable

  • Revised non-thinking K2 model with a doubled context window and a stronger focus on agentic coding.

    Launch date Downloadable

  • Long-reasoning K2 model trained to alternate internal reasoning with repeated tool interactions.

    Launch date Downloadable

  • Pretrained hybrid-attention model that combines recurrent memory with selected global-attention layers.

    Launch date October 2025Downloadable

  • Instruction-tuned hybrid-attention model designed to reduce memory use in long conversations.

    Launch date October 2025Downloadable

  • Original instruction-tuned K2 checkpoint for tool use and coding without extended thinking mode.

    Launch date Downloadable

  • Trillion-parameter pretrained model that introduced MuonClip training to the Kimi K2 family.

    Launch date July 2025Downloadable

  • Revised visual-reasoning model with higher-resolution image input and improved video understanding.

    Launch date Downloadable

  • Qwen2.5-72B adaptation trained to locate software faults and produce repository-level fixes.

    Launch date Downloadable

  • Pretrained audio-language model for adaptation to speech, sound and audio conversation tasks.

    Launch date Downloadable

  • Instruction-tuned audio model that can answer in text or produce speech with its text response.

    Launch date Downloadable

  • Vision-language model for images, documents and video, built from Moonlight and the MoonViT encoder.

    Launch date April 2025Downloadable

  • Original long-reasoning vision-language checkpoint, retained alongside the later June 2025 revision.

    Launch date April 2025Downloadable

  • Pretrained language model used to study Muon optimization at 16 billion total parameters.

    Launch date February 2025Downloadable

  • Instruction-tuned Moonlight release for conversation and task prompts, with an 8,192-token context.

    Launch date February 2025Downloadable

  • Multimodal reasoning research model used to study reinforcement learning and long-to-short reasoning transfer.

    Launch date January 2025Access not confirmed
  • Moonshot v1

    Moonshot AI · Moonshot v1

    Earlier API model family for long text and structured responses, with later vision-preview variants.

    Launch date Deprecated API; check access detailsAPI

  • Standalone vision encoder adapted from SigLIP-SO-400M for native-resolution image features.

    Launch date not confirmedDownloadable