Try Mercury by Inception. It's available as autocomplete in Zed. Last time I tried it, Zed had an API key hidden in their docs that allowed you to use it for free

The crazy thing is that it's a diffusion-based LLM. That makes it very fast, like Cursor Tab, and the outputs seem very accurate in my limited testing (although I find Cursor Tab to still feel "like 10% better")

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That said, you should really give agentic coding a la Claude Code a try. It's gotten incredibly good. I still need to check the outputs of course, but after using it for 2-3 days, I've learned to "think" about how to tackle a problem with it similarly like I had to learn when first picking up programming.

Once I did, suddenly it didn't feel risky and weird anymore, because it's doing what I would've done manually anyways. Step by step. It might not be as blackboxy as you think it is