Pi
Pi: A flexible open-source coding agent for developers who prefer extensible workflows. Ranked #67 of 103 in AI Coding Assistants by our editors (3.0/10); pricing: Open source; best for developers needing a flexible open-source agent runtime.
At a glance
- Editor score3.0 / 10
- PricingOpen source
- Best forDevelopers needing a flexible open-source agent runtime
- Paid fromFree
- Coding agentYes
- Facts checked22 Sep 2026
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
Our verdict on Pi
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).
Your product? Our editors can test Pi in depth and publish a review, labelled as paid · from $149/mo →
Pi pricing
Pi fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Code completion | Not verified |
| Chat assistance | Yes |
| Coding agent | Yes |
| Supported IDEs | Not verified |
| Codebase indexing | Yes |
| Terminal access | Yes |
| Deployment | Self-hosted |
| Platforms | Windows, macOS, Linux, Android |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 15 integrations: Anthropic, OpenAI, Google, Azure, Amazon Bedrock, Mistral … |
| Pricing | Open source |
| Website | pi.dev |
| Facts checked | 22 Sep 2026 |
Pi integrations
Pi lists 15 integrations on its own site.
- Anthropic
- OpenAI
- Azure
- Amazon Bedrock
- Mistral
- Groq
- Cerebras
- xAI
- Hugging Face
- OpenRouter
- Ollama
- GitHub Copilot
- ChatGPT Codex
- Claude Pro/Max
Alternatives to Pi
- GitHub CopilotA broad coding assistant with a free entry point and agent workflows.9.3
- Claude CodeA strong fit for multi-step coding work across codebases, tools, and pull requests.9.2
- DevinA broad autonomous coding workspace with usage-based plan differences.9.1
Used Pi? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Pi for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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