DeepSeek · Model release
DeepSeek-V4.1-Flash released
DeepSeek's first model in a new architecture family, with native visual understanding, a 1M-token context and open weights.
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Original sources
- Change Log | DeepSeek API Docs (opens in a new tab) ↗
First-party source · Source checked
Date: 2026-09-10 DeepSeek-V4.1-Flash Release Today, we officially release the DeepSeek-V4.1-Flash model. It is the smallest model in our new architecture family, with native multimodal visual understanding.
- Introducing DeepSeek-V4.1-Flash (opens in a new tab) ↗
First-party source · Source checked
552B-parameter MoE. New Causal Encoder-Decoder architecture: just 8B active parameters for input, 16B for output.
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Event ID: deepseek-v4-1-flash-released