Pi

Minimal, extensible terminal coding agent harness from Earendil; Pi 1.0 shipped 1 Oct 2026 with Codemode (MCP), virtual models and extensions.

Key facts

• Use case: AI coding IDEs & agents
• TestedTools score: Testing in progress
• Pricing: Free, open source (MIT); bring your own model provider and API keys partial (source, checked 2026-10-15)
• Affiliate: unknown

Visit Pi →

Alternatives

• Cursor
• Windsurf
• Claude Code
• OpenAI Codex
• GitHub Copilot
• Cline
• Aider
• Zed
• OpenCode

Building a tool like this? Fast-Track Review gets it tested sooner (paid, does not change its score).