OpenCode
Free, open-source AI coding agent for the terminal with a polished TUI — bring your own API key for Claude, GPT, or Gemini across 75+ providers, or run a local model through Ollama at zero cost.
Works with:claudechatgptgemini
Platform:windowsmaclinux
Articles featuring this tool
list
Best Free Terminal AI Coding Agents in 2026 (Gemini CLI Alternatives)
Gemini CLI's free tier is retiring June 18, 2026. Here are the terminal AI coding agents that are still genuinely free to run — ranked for beginners with no budget.
June 16, 2026
comparison
OpenCode vs Claude Code: Which Terminal Agent Wins?
OpenCode vs Claude Code compared for beginners — open-source model freedom vs Anthropic polish. Which terminal AI coding agent to install first, and why.
June 4, 2026
review
OpenCode Review: The Free Terminal AI Coding Agent
OpenCode review for beginners: a free, open-source terminal AI coding agent with a slick TUI that works with Claude, GPT, and Gemini. Vs Goose and Aider.
June 3, 2026