Developer Tools

Cursor just did something most AI companies talk about but rarely execute: they built their own model instead of wrapping someone else’s. Composer 2 is not another GPT wrapper. It is a code-only model trained from scratch on long-horizon coding tasks, designed to live inside Cursor’s editor and handle the kind of multi-file, multi-step work that makes developers lose entire afternoons. What Is Composer 2? Composer 2 is Cursor’s proprietary AI coding model, purpose-built for agentic coding workflows. Think of it as a developer who can hold 200,000 tokens of context, navigate your entire codebase, run terminal commands, and make edits across multiple files — all without losing the plot. ...

The open-source AI community just got its most powerful weapon yet. GLM-5, a 744-billion parameter model released under the MIT license, is not just competitive with proprietary models — it is beating some of them on benchmarks that matter. Built by Zhipu AI (Z.AI) and trained entirely on Huawei Ascend chips without a single NVIDIA GPU, GLM-5 is as much a geopolitical statement as it is a technical achievement. But for developers and startups, the only question that matters is: can it actually do the work? ...