iFlytek Releases Spark X2.6 Large Model, Focusing on Cloud-Device Collaboration

At the main forum of the 2026 Global 1024 Developer Festival, iFlytek released Spark X2.6. Built on a fully domestic, self-reliant technology stack, it uses cloud-device collaboration to let on-device devices handle some tasks while complex problems are handed to the cloud, reducing Token costs and protecting sensitive data. Spark X2.6 is the first to achieve breakthroughs in coding and Agent capabilities based on fully domestic computing power, with the on-device Spark X2.6-4B reaching 41.9% coverage of Agent tasks. iFlytek says dynamic parallel training for long-horizon tasks improves ultra-long-context training efficiency by about 4x and inference efficiency on domestic clusters by 4.5x, and it has already been deployed in education, healthcare, legal and other fields.