Kilo: Open Source AI Coding Agent for IDEs, CLI, and Cloud

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Kilo is an MIT-licensed, open-source AI coding assistant designed to operate across VS Code, JetBrains IDEs, CLI environments, and cloud agents. It provides access to over 500 models at cost without inference markup, supporting bring-your-own-keys and local models.

Key points

  1. Operates across multiple interfaces including VS Code, JetBrains (IntelliJ, PyCharm, WebStorm), CLI, Cloud Agents, and Slack.
  2. Supports 500+ frontier, open-weight, and local models with zero markup and bring-your-own-keys support.
  3. Fully open source under the MIT licence with transparent prompts, visible context windows, and no silent model switching.
  4. Specialised agent modes including Ask, Architect, Code, Debug, and Custom.
  5. Auto Model feature routes queries across Free, Efficient, or Frontier tiers to optimise spending.
  6. Enables parallel isolated worktrees and centralised agent orchestration across local and remote sessions.

Why it matters

Proprietary AI coding tools often create vendor lock-in through restrictive pricing and opaque model routing. Kilo offers an open-source alternative that ensures auditability of prompts and contexts while granting developers full freedom over which AI models they use and how they pay for inference.

Analysis

By deploying the same agent runtime across editors, terminal, and cloud workers, Kilo directly targets developer friction in modern agentic engineering. The combination of MIT licensing, zero markup on model inference, and flexible BYOK options offers a clear counterweight to commercial closed-source platforms.

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Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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Locations

  • Mattersburg
    Johann Nepomuk Bergerstraße 7/2/14
    7210 Mattersburg, Austria
  • Vienna
    Ungargasse 64-66/3/404
    1030 Wien, Austria

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