DeepSeek 4.1: 670B parameters, 256 experts and MTP-4x

DeepSeek-AI released open weights and a corporate endpoint for DeepSeek 4.1: 670B total parameters with only 37B active per token, 256 routed experts plus one shared expert. MTP-4x and DualPipe 2.0 push throughput past 240 tokens/s per node at $0.55 per million output tokens.

• 670B total parameters, only 37B active per token
• 256 routed experts plus a 3.2B shared expert
• MTP-4x delivers over 240 tokens/s per node at 88% acceptance
• Output priced at $0.55 per million tokens