OpenCode (open source)
$0freeThe agent itself, with free models included; or connect your own provider keys or Copilot/ChatGPT subscriptions, billed by those providers. Official source 1 ↗ · Official source 2 ↗
Website-checked tool profile
OpenCode
Open-source AI coding agent for the terminal, desktop and IDE that works with free models, 75+ providers or your existing subscriptions.
Sources checked
- Pricing
- The OpenCode agent is free and open source and includes free models; you can also bring your own provider keys or subscriptions. Optional paid services: Zen is pay-as-you-go from a $20 prepaid balance, Go costs $10/month and Go Plus $40/month, and Enterprise uses custom per-seat pricing. Official source 1 ↗ · Official source 2 ↗ · Official source 3 ↗ · Official source 4 ↗
- Available as
- Terminal interface, desktop app and IDE extension; a web interface is available through the opencode pair command. · Desktop builds for macOS (Apple silicon and Intel), Windows (x64 and ARM64) and Linux; CLI binaries for macOS, Windows and Linux, plus Docker images. Official source 1 ↗ · Official source 2 ↗ Official source 1 ↗
- Primary group
- Coding & Development
What it does
OpenCode is an open-source AI coding agent from Anomaly that helps you write code in a terminal interface, desktop app, web interface or IDE extension. It works with models from 75+ providers, including local models, and can also use an existing GitHub Copilot or ChatGPT Plus/Pro login. Optional paid services from the same team are Zen (pay-as-you-go access to tested coding models), Go (a low-cost model subscription) and per-seat Enterprise.
Official source 1 ↗ · Official source 2 ↗Features
- Any model provider. Connect models from 75+ providers through Models.dev, including local models, or sign in with an existing GitHub Copilot or ChatGPT Plus/Pro account. Official source 1 ↗
- Plan and Build modes. Plan mode disables changes so the agent proposes how it will implement a feature; switch back to Build mode with Tab to apply it. Official source 1 ↗
- Undo and redo. Revert the agent's changes with /undo, repeatedly if needed, and restore them with /redo. Official source 1 ↗
- Project context with AGENTS.md. The /init command analyzes a project and writes an AGENTS.md file that helps the agent understand its structure and coding patterns. Official source 1 ↗
- LSP and parallel sessions. Automatically loads language servers for the model and lets you run multiple agents in parallel on the same project. Official source 1 ↗
- Shareable sessions. Share a link to any session for reference or debugging; Enterprise teams can disable sharing in config. Official source 1 ↗ · Official source 2 ↗
- Customization. Extend OpenCode with config, plugins, MCP servers and custom commands. Official source 1 ↗
Pricing & free limits
Zen
Pay as you goper request, from a $20 prepaid balanceCurated models tested for coding agents, at per-request prices with no markup; auto top-up adds $20 when the balance reaches $5. Usable with any agent. Official source 1 ↗
Go
$10per monthLower-cost access to a curated set of open coding models, with per-model 5-hour, weekly and monthly usage limits. Single-member workspaces only. Official source 1 ↗
Go Plus
$40per monthEverything in Go with higher usage limits, for larger projects. Official source 1 ↗
Enterprise
Custom quoteper seatCentral config with SSO and an internal AI gateway; no token charges when you use your own LLM gateway. Official source 1 ↗
Billing details
Console credits carry a processing fee of 4.6% + $0.31, and paid requests fail once the balance reaches zero. Official source 1 ↗
Go subscribers can turn on Extra usage to pay from credits once a Go limit is reached. Official source 1 ↗
Free access & limits
Free access and its limits were not established by the checked official sources.
Best for & limitations
Planning and then building a new feature in an existing codebase, such as soft-deleting notes with a screen to restore them. Official source 1 ↗
Asking questions about an unfamiliar part of a codebase by referencing files with @. Official source 1 ↗
Organizations rolling out a coding agent that routes all requests through their own SSO and internal AI gateway. Official source 1 ↗
- Shared sessions leave your machine. OpenCode does not store code, but the optional /share feature sends the conversation to OpenCode's hosted share pages. Official source 1 ↗
- Go is single-member only. Go and Go Plus workspaces cannot invite members. Official source 1 ↗
- Windows works best through WSL. OpenCode recommends WSL on Windows for better performance and full feature compatibility. Official source 1 ↗
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