iFlytek’s wholly owned unit Ciyuan Spark has released and open-sourced two
edge-focused general-purpose LLMs, Spark X2.5-4B and Spark X2.5-1.7B. The models
are the only edge-native models the firm says natively support up to a
1,000,000-token context, bringing million-token processing capability to
on-device/local deployments.