Qwen3.8-Flash Officially Launches on B.AI, All Official Models Now Fully Free to Use

One-stop AGI infrastructure platform B.AI announced that Alibaba Qwen's latest open-source model, Qwen3.8-Flash, has officially launched on the platform and is now fully available for free access via the API official group. Acting as a forward-looking preview of the Qwen4 architecture, Qwen3.8-Flash is a multimodal MoE model with 125B total parameters and 51B N-gram Embeddings, activating only 6B parameters per token. The model integrates a hybrid attention mechanism combining GDN and QSA for the first time, effectively balancing long-text processing efficiency with information retrieval accuracy. It natively supports a 262K context window and can be extended to 1M using YaRN. Starting today, developers can access this model at zero cost through the B.AI API official group to seamlessly handle multimodal tasks such as coding assistance, agent workflows, and document analysis. B.AI continues to lower the barrier to AI application development by providing inclusive computing resources, enabling more developers to leverage top-tier open-source models.