pi: what it is, features, and how to use it with Geek Hub (2026)

pi is an terminal coding agent (CLI) built for Large Language Model (LLM) workflows. Personal coding agent: there are many coding agents, but this one is yours. This pi review covers what pi is, key pi features, who should use pi, how to use pi step by step, and how to connect pi to Geek Hub when it supports an OpenAI-compatible endpoint. Official site: pi.dev.

CLIUpdated 2026-08-11Official site

What is pi?

pi is Personal coding agent: there are many coding agents, but this one is yours. In practice, pi works as an terminal coding agent (CLI) in the ecosystem of apps and agents that call LLMs over APIs.

People searching “what is pi” usually compare pi with other tools in the same cluster (CLI Agents). On public usage rankings (e.g. OpenRouter), pi shows up there — adoption context, not Geek Hub token volumes.

If you want to run pi with Claude, GPT, Gemini, or open-source models without locking to one vendor, the useful setup is: pi + an OpenAI-compatible gateway (Geek Hub).

Key features of pi

pi features change with each release — always confirm in the official pi docs (pi.dev). As an terminal coding agent (CLI), pi typically covers:

  • pi: Terminal-native coding agent
  • pi: Edit, refactor, and debug from the CLI
  • pi: Client or settings for multiple LLM providers via a gateway

Who should use pi?

pi fits if you need an terminal coding agent (CLI) and care about model flexibility. Typical pi audiences:

  • pi for terminal-first software developers and programmers
  • pi for people who refactor, debug, and commit with a CLI agent
  • pi for multi-model users who want a unified LLM client via a gateway

How to use pi

How to get started with pi in most setups (adjust to pi docs):

  • Install or open pi from pi.dev
  • Create an account or API access per pi’s flow
  • Configure the model / provider inside pi
  • If pi supports an OpenAI-compatible base URL, point pi at Geek Hub
  • Run a short workflow in pi and check quality + cost

pi pricing and plans

pi pricing depends on the product (free, freemium, subscription, or open-source). Always check the official pi page at pi.dev before you decide.

Even when pi is free or freemium, model usage via API is usually billed separately. That’s why many teams connect pi to a gateway like Geek Hub: one key, many models, spend control.

How to use pi with Geek Hub (OpenAI-compatible API)

Geek Hub is an LLM gateway with an OpenAI-compatible API. If pi supports a custom provider or OpenAI-compatible base URL, connect pi to Geek Hub and pick Claude, GPT, Gemini, or other catalog models with one API key — without switching tools.

That way pi stays your terminal coding agent (CLI), and Geek Hub handles routing, cost, and model fallback.

  1. Create an account at app.geekhub.mx and generate an API key for pi
  2. In pi, open model / OpenAI-compatible provider settings
  3. Point pi at base URL https://api.geekhub.mx/v1
  4. Paste your Geek Hub API key into pi and pick a catalog model id
  5. Run a short test in pi and check cost in the Geek Hub dashboard
# pi → Geek Hub
OPENAI_BASE_URL=https://api.geekhub.mx/v1
OPENAI_API_KEY=gh_...
# example model id: anthropic/claude-sonnet-5
Get an API key

pi FAQ

What is pi?
pi is an terminal coding agent (CLI). Personal coding agent: there are many coding agents, but this one is yours. See pi.dev for product details.
Does pi work with Geek Hub?
If pi supports an OpenAI-compatible provider, yes: configure pi with base URL https://api.geekhub.mx/v1 and your Geek Hub API key. If pi only speaks closed proprietary APIs, this pi guide is still a useful overview, but wiring may not apply.
How do I use pi with Claude, GPT, or Gemini?
In pi, pick a custom / OpenAI-compatible provider when available, point it at Geek Hub, and select the model id (e.g. anthropic/…, openai/…, google/…). That way pi switches models without switching apps.
Is pi free?
It depends on pi’s plan. Many tools are freemium or open-source at the core; model tokens are paid to the provider or gateway. Check pricing at pi.dev.
Does Geek Hub republish OpenRouter token volumes for pi?
No. Public ranking volumes are not Geek Hub metrics. In Geek Hub you only see your account’s usage when calling models from pi or other apps.

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