Technical Implementation and Value of Ultra-Long Contexts
The 128K context window natively supported by GLM-4.5 is its key technological breakthrough. This capability is implemented based on Positional Interpolation and Attention Optimization techniques, enabling the model to fully process technical documents of 300+ pages or literary works of 100,000+ words. Compared with the 32K limitation of mainstream models, its long text comprehension accuracy is improved by 37%.
In specific application scenarios, this feature brings two major advantages: firstly, document-level semantic understanding, such as maintaining consistency across clauses when analyzing legal contracts; and secondly, decomposition of complex tasks, such as maintaining logical coherence when converting a hundred pages of technical manuals into operational procedures. Test data shows that in Needle-in-a-Haystack evaluation, GLM-4.5's information extraction accuracy at the end of 128K text reaches 89%, far exceeding that of similar products such as Llama 3. Combined with its structured output capability, this makes it an ideal choice for long text processing scenarios such as finance and law.
This answer comes from the articleGLM-4.5: Open Source Multimodal Large Model Supporting Intelligent Reasoning and Code GenerationThe
