JT-4.1 Flash 236B A21B (Non-reasoning)

JT-4.1 Flash 236B A21B (Non-reasoning) is a proprietary language model developed by China Mobile, released on July 9, 2026. Built as a large-scale text model featuring 236 billion parameters, it is designed to deliver efficient token processing for general text generation and technical workloads without relying on extended chain-of-thought reasoning steps.

The model incorporates a expansive 262k token context window, allowing it to process long-form documents and extensive context history in a single request. It exhibits strong capabilities in code generation and software development, maintaining high performance on specialized coding metrics while prioritizing direct, low-latency text delivery.

Core Characteristics

As part of China Mobile's suite of enterprise language models, the non-reasoning variant of JT-4.1 Flash is optimized for high-throughput operational tasks. It functions as a text-focused architecture tailored for applications requiring large-scale data handling, summarization, and responsive conversational interactions.