B.AI announced the launch of the DeepSeek-V4.1-Flash multimodal model

The B.AI platform announces the official launch of the DeepSeek native multimodal MoE large model DeepSeek-V4.1-Flash. This model uses a backbone with 552 billion parameters and a Causal Encoder-Decoder architecture, with asymmetric computational scales for input and output.

The model supports a context of 1 million tokens and 384K output, aimed at long-cycle programming agents, multimodal workflows, and high-concurrency agent systems. Currently, both Web Chat and API access have been opened.