dots3-note preview: Open-Weight 280B MoE Model with 512K Context

Repositorystudio-dots-ai/dots3-note-prevAnnouncement

Dots Studio has released dots3-note preview, the first open-weight model in the dots3 family. The Mixture-of-Experts architecture features 280 billion total parameters with 16 billion activated parameters, multimodal inputs, and context support up to 512K tokens.

Key points

  1. Mixture-of-Experts (MoE) model featuring 280B total parameters and 16B activated parameters.
  2. Multimodal input support covering text, images, video, and audio, generating text output.
  3. Extended context window supporting up to 512K tokens.
  4. Tuned for mathematical and logical reasoning, multi-step agent workflows, tool use, and interactive tasks.
  5. Released under Apache 2.0 with deployment support across Hugging Face Transformers, SGLang, and vLLM.

Why it matters

MoE architectures that activate only a small fraction of their parameters (16B of 280B) while handling 512K context windows lower the operational threshold for running high-capability, open-weight multimodal agents.

Analysis

The repository introduces a large-scale open-weight model addressing multi-step reasoning, agent execution, and long-context processing. dots3-note activates only 16B parameters per token, balancing compute efficiency with broad capacity across text, audio, image, and video modalities. It leverages modern serving frameworks including vLLM and SGLang alongside standard Hugging Face tools. The project is primarily aimed at AI engineers, researchers, and enterprises building self-hosted agent stacks. Regarding maturity, it is currently positioned as a preview: the weights and base integration pull requests are live under the Apache 2.0 license, but the comprehensive technical report is still marked as forthcoming.

Found in

Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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