OpenCode Review: The Open-Source Terminal Coding Agent

What Is OpenCode?

• Product type: a terminal-native coding agent (a CLI, not a single downloadable installer app), with IDE and desktop interfaces also offered per opencode.ai
• Repository: canonically anomalyco/opencode on GitHub today; PromptQuorum's own directory research found this is a renamed/relocated repository, and flags that a separately named, unrelated smaller project uses a similar name — verify you are on the anomalyco/opencode path before installing
• License: MIT, per the license badge on the current GitHub repository page
• Scale: over 200,000 GitHub stars as of this review; OpenCode's own site also states a contributor count in the high hundreds and a monthly-developer figure in the millions — this review treats both as OpenCode's own claims rather than independently verified numbers
• Pricing model: the core agent is free and open source; OpenCode Zen is a separate, paid hosted model marketplace offered alongside it, per opencode.ai

What Does OpenCode Actually Do?

• Terminal-first agent: the primary interface is a command-line session inside your project directory
• IDE and desktop modes: OpenCode's own site describes additional ways to use it beyond the terminal, for developers who want it embedded in a graphical workflow
• Provider-agnostic model access: connects to 75+ model providers through Models.dev, per opencode.ai, rather than shipping with one built-in model
• Named provider integrations: OpenCode's own site lists direct support for Claude, GPT, and Gemini, plus GitHub Copilot and ChatGPT Plus/Pro account integrations
• Local model access: an OpenAI-compatible provider configuration lets you point OpenCode at a model running on your own machine — see the local-model section below for the exact configuration
• Privacy positioning: OpenCode's own site describes a "privacy-first" approach with no code storage on its servers; this review did not independently audit that claim and reports it as stated by OpenCode

How OpenCode Connects to Local Models

• Configuration file: OpenCode reads a JSON config (referencing the https://opencode.ai/config.json schema) where you declare a custom provider entry
• Ollama: set npm to @ai-sdk/openai-compatible and options.baseURL to http://localhost:11434/v1 — Ollama's own OpenAI-compatible API port — then list the model names you have pulled locally under that provider's models object
• LM Studio: the same pattern applies with options.baseURL set to http://127.0.0.1:1234/v1, LM Studio's local server address, and the model identifiers LM Studio has loaded
• Per OpenCode's own documentation, if tool-calling does not work reliably with a local model, increasing Ollama's num_ctx context-window setting (documentation suggests starting around 16k–32k) is the recommended fix
• Because this is a generic OpenAI-compatible provider slot, the same configuration pattern should work with any other backend that exposes an OpenAI-compatible endpoint, not only Ollama and LM Studio specifically

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "ollama": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "Ollama (local)",
      "options": {
        "baseURL": "http://localhost:11434/v1"
      },
      "models": {
        "llama2": { "name": "Llama 2" }
      }
    }
  }
}

Platform, Pricing, and Licensing

Install OpenCode

Who Should Use OpenCode?

What OpenCode Is Not Good For

• Not a fixed-cost tool for cloud providers — if you connect a cloud model through Models.dev rather than a local one, your costs scale with that provider's own pricing
• Not independently benchmarked by PromptQuorum — this review is based on OpenCode's own site, documentation, and GitHub repository, not hands-on PromptQuorum testing
• Not free of organizational history to check — the canonical repository has moved between GitHub organizations, so always verify you are following the current link from opencode.ai rather than an old bookmark or search result
• Not a single downloadable installer app — if you specifically want a one-click GUI installer rather than a terminal command, this is not that kind of tool

Common Mistakes When Evaluating OpenCode

Competitors and Alternatives

Frequently Asked Questions

Sources

Related Reading

• Aider Review — a terminal-native, git-centric AI pair programmer, for comparison against OpenCode.
• Cline Review — an open-source, IDE-integrated autonomous coding agent.
• OpenHands Review — a free, open-source, self-hosted autonomous coding agent platform.
• Local LLM Software Directory 2026 — the full catalog of local AI tools this article belongs to, including OpenCode's own directory entry.