iFLYTEK launches Spark X2.6 trained on domestic chips, open-sources 4B model

iFLYTEK unveiled the Spark X2.6 device-cloud model family, which it says is trained entirely on domestic Chinese compute. The cloud model uses a 293B-A30B mixture-of-experts design with a 1M-token context, while the open-source Spark X2.6-4B targets robots, cars and AI PCs.

• Cloud model: 293B total parameters, ~30B active per token
• 1M-token context window; input priced from 0.9 yuan per million tokens
• Training on 2 trillion tokens took 1.2 months instead of 4.5 on Feixing-2
• Open Spark X2.6-4B beats Qwen3.5-4B and Gemma4-E4B on iFLYTEK benchmarks