Pi review
A flexible open-source coding agent for developers who prefer extensible workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Pi is a local, terminal-based coding agent for developers who want an extensible workflow instead of a prescriptive IDE assistant. It can read, create, overwrite, and patch project files, run shell commands through a built-in bash tool, and load AGENTS.md, CLAUDE.md, and other project context files. Its fit is strongest for solo, small, and mid-market teams that want control over their development environment and model selection.
Its standout strength is flexibility across providers and interfaces. Pi supports subscription and API-key model providers including Anthropic, OpenAI, Google, Azure, Amazon Bedrock, Mistral, Groq, Cerebras, xAI, Hugging Face, OpenRouter, Ollama, GitHub Copilot, ChatGPT Codex, and Claude Pro/Max. Developers can work through interactive, print, JSON, RPC, or SDK modes, while sessions remain navigable as trees with branching and resumption. TypeScript extensions, skills, prompts, themes, and packages provide additional ways to shape the workflow.
Pi also emphasizes local control through project trust controls and self-hosted deployment. Its core is distributed as an npm package, making it suited to teams comfortable managing their own environment and selecting separate model access. The trade-off is that setup and ongoing configuration sit closer to the developer than in a prescriptive IDE assistant, and model access may add provider subscription or API charges. Choose Pi if extensibility, provider choice, shell access, and persistent branching sessions matter most; choose an alternative if you want a more guided, centrally managed coding environment.
Questions about Pi
What does Pi run on? Windows, macOS, Linux and Android. It runs self-hosted.
What does Pi integrate with? 15 integrations, including Anthropic, OpenAI, Google, Azure and Amazon Bedrock.
Who is Pi built for? Solo users, small businesses and mid-market companies (our editorial estimate).
Pi pros and cons
- Where it wins
- Reads, edits, creates, patches, and overwrites project files
- Supports many model providers, including OpenAI, Anthropic, and Ollama
- Offers branching sessions, extensions, skills, themes, and SDK modes
- Where it doesn't
- Primarily self-hosted, so deployment requires local resource management
- Model access may involve separate provider subscriptions or API charges
- Community and documentation are the listed support channels
Pi fact sheet, pricing and score →
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