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DeepSeek V4.1 Flash

DeepSeek, 9 Sep 2026.

Lab
DeepSeek
Released
9 Sep 2026
Kind
Language, Question answering
Training compute
4.4 × 10²⁴ FLOP
Parameters
748.0 billion
Capability index
155.0 (Epoch)
Organisations
DeepSeek
Country
China

Data: Epoch AI (Creative Commons Attribution), releases too new for it from OpenRouter, and METR. Updated 25 Sep 2026.