OpenCode vs Pi: Full TUI or Minimal Agent?
An in-depth comparison of OpenCode and Pi across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
An in-depth comparison of OpenCode and Pi across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
Looking for the Oh My Pi (omp) fork instead?See Oh My Pi vs OpenCode →
Either way, you pay for the model calls. A median coding-agent day on our gateway is 95 requests and 8.6 million tokens. The table prices every step at one model’s rate.
Both run on Standard Compute, where each step goes to the cheapest model that can do it: routine steps go to efficient open models, hard ones to frontier models such as Claude Fable 5.1 or GPT-6 Astra.
| Model | Typical day | Busy day |
|---|---|---|
| Claude Opus 5.5 | $7.34 | $59.10 |
| Claude Sonnet 5.5 | $3.67 | $29.55 |
| GPT-6 Luna | $0.23 | $2.43 |
Fixed monthly plans from $19. Eligible new accounts can try $0.25 of compute first, no card. Trial terms
Pick a winner in each category. You can change your vote anytime. 46 votes cast so far.
OpenCode and Pi are both open-source terminal coding agents, and the difference between them is philosophical. Pi, Mario Zechner's agent, is radically minimal on purpose: the model gets read, write, edit, and bash, and everything beyond that (subagents, plan mode, custom tools) lives in TypeScript extensions you opt into. The result is a very fast loop, a clean context window, and behavior you can fully audit and reshape. Mid-session model switching and session branching are the power features hiding under the minimalism.
OpenCode ships the batteries: a polished TUI, LSP integration, and session management that works out of the box. You get more capability in the first hour, at the cost of a bigger, more opinionated surface than Pi's deliberately tiny core.
Both are MIT-spirited, bring-your-own-model tools with custom OpenAI-compatible provider support. Pick by temperament: if you extend your tools, Pi rewards it; if you want the finished product, OpenCode is it.
OpenCodePiChoose OpenCode if you are terminal users who want a polished AI coding interface with LSP support. Choose Pi if you are developers who want a fast, minimal, hackable terminal agent with full control over context and models.
In our editorial scoring, Pi leads in 3 of six categories (reliability, speed and value), while OpenCode leads in 1 (ease of use). On price, OpenCode runs free (mit) / free zen models / go $10/mo and is open source; Pi runs free (mit), bring your own model and is open source.
Across 46 community votes on this matchup, the community has it tied. Cast your own vote above to move the needle.
What it costs to run OpenCode or Pi
Best API for OpenCode →
7 options compared, with prices and limits
Best API for Pi →
4 options compared, with prices and limits
Standard Compute sends each step to the cheapest model that can do it, on providers we vet for price, uptime and speed. Plans start at $19 a month, and eligible new accounts can try $0.25 of compute with no card. Choose your agent below to connect.
See the trial and activation steps →
More on OpenCode: OpenCode Pricing: Plans, Subscription and API Costs (2026) · What changed in OpenCode 2, and does it cost more?
More on Pi: What Does the Pi Coding Agent Cost to Run, and How Do You Make It Predictable? · How do I use DeepSeek in the Pi coding agent?
OpenCode is an open-source (MIT) AI coding agent best known for its terminal TUI, now also shipping a desktop app and IDE extensions with OpenCode 2. It connects to 75+ LLM providers through models.dev, has LSP integration for real code understanding, and runs several sessions in parallel. The tool is free; for models you bring your own key, use OpenCode's free Zen models, pay as you go on Zen, or subscribe to its Go plan ($10/month, Go Plus $40).
Pi is an open-source terminal coding agent and agent harness created by Mario Zechner (badlogic, creator of libGDX) and published under MIT by Earendil. Its philosophy is radical minimalism: by default the model gets a small set of tools (read, write, edit, bash), and everything else, from subagents to plan mode, lives in TypeScript extensions. That keeps the loop fast, the context clean, and the behavior fully under your control. It supports 30+ model providers with mid-session switching, session branching and compaction for long tasks, and custom OpenAI-compatible providers via a simple models.json.
Only if you want to build your own setup. Pi (pi.dev, Mario Zechner's terminal coding agent, not Inflection's Pi chatbot) has the leaner, faster loop: the model gets read, write, edit and bash, and subagents, plan mode and custom tools come as TypeScript extensions you add. OpenCode is better out of the box, with a polished TUI, LSP integration and session management built in. If you won't write or install extensions, OpenCode is the better pick.
Scope. OpenCode ships a full terminal TUI with LSP code intelligence and session management. Pi keeps a minimal core of four tools and moves everything else into TypeScript extensions, with mid-session model switching and session branching built in. Both are free, open source and bring-your-own-model.
Yes. Both accept custom OpenAI-compatible providers, so one Standard Compute key covers both. The router sends each step to the cheapest model that can do it, and providers are vetted for price, uptime and speed, with automatic fallback.
OpenCode and Pi both run on Standard Compute
