DeepSeek introduced DeepSeek-V4.1-Flash—the smallest model in its new family with native vision. It is a 552B MoE with a Causal Encoder–Decoder (8B active on input, 16B on output), claims benchmarks ahead of flagships including V4-Pro, shrinks KV cache to ~1/4 HBM and ~1/8 SSD vs prior gen, and published HF weights plus a tech report.
Key Takeaways
- ✓DeepSeek-V4.1-Flash launches: smallest in new family with native vision.
- ✓552B MoE Causal Encoder–Decoder (8B in / 16B out active); claims wins vs flagships incl. V4-Pro.
- ✓KV cache ~1/4 HBM and ~1/8 SSD; HF weights and tech report published.
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TL;DR VerdictKey Decision Metrics at a Glance
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Up NextDeepSeek ships V4.1-Flash-1017: MIT open weights, live on web, app and API at unchanged prices, DeepSWE 77.0 (vendor-reported), plus public Search/Fetch APIs
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