Two AI code editors, side by side. Facts below link to their sources; last checked 2026-10-17.

High-performance open-source code editor written in Rust. The agent discovers context, edits files and keeps going until the task is done; you can also plug in external agents like Codex or Claude Code. source

Agentic IDE built around spec-driven development: it turns a prompt into requirements, design and tasks before writing code. Also has a CLI. source
Zed: Open-source Rust editor at 120fps with an agent panel and parallel agents. Kiro: Spec-driven agentic IDE: turns prompts into specs, then code.
Zed: From $10/month (free tier available). Kiro: From $20/month (free tier available). Prices change often; confirm on the official pricing pages.