On November 6, 2025, during the 8th World Conference on Voice Technologies and the iFLYTEK Global 1024 Developers Festival, iFLYTEK introduced the Spark X1.5 deep reasoning large-scale model. This innovative model is constructed upon a fully domestic computing architecture, marking a significant milestone. It stands as a trailblazer by successfully addressing the full-chain training efficiency hurdles associated with Mixture of Experts (MoE) models on domestic computing platforms. In doing so, it has achieved end-to-end performance that surpasses 93% of the efficiency levels demonstrated by its international counterparts.

The Spark X1.5 model boasts six core capabilities, including language understanding and text generation, which are on par with international mainstream models. Notably, its mathematical prowess maintains a leading position. Additionally, it offers multilingual support for over 130 languages, and its overall performance approaches 95% of that of GPT-5. Alongside the model's release, iFLYTEK also unveiled the 'Spark Industry Analyst' AI agent. This cutting-edge agent has already found applications in key sectors such as energy, power, and finance.