Every week there’s a new LLM wrapper promising to fix your documentation or generate perfectly idiomatic code comments. It’s exhausting to keep up with the noise. I’ve spent the last month testing five of the most popular AI writing tools to see if any of them actually hold up under a real developer's workflow or if they’re just hallucinating their way through markdown files.

Most reviews focus on marketing fluff, but I wanted to look at the architecture. I checked how these tools handle context windows when you’re feeding them technical specs and whether their API latency makes them viable for actual production pipelines.…