Ever wish you could swap out AI models in your terminal as easily as changing channels on TV? OpenCode makes that possible — and it’s completely free.
The Simple Version
Just pick the model you want, drop in your API key, and start coding.
How It Actually Works
Plug‑in API Keys
You add your Anthropic, OpenAI, DeepSeek, or any compatible API key into OpenCode’s config file. The tool stores the key securely and uses it to query the corresponding model endpoint.
Model Switching
When you run a command, OpenCode reads the selected model name and routes the request to the right API, returning code suggestions instantly.
Technical Deep Dive
Config File Format
The config is a simple JSON file where each entry maps a model alias to its endpoint URL and API key.
Cost Control
OpenCode tracks token usage per request, letting you set hard limits or switch to cheaper models on the fly.
Why This Matters
Developers no longer need to lock themselves into a single AI provider. OpenCode gives you freedom to experiment, optimize cost, and keep full ownership of your data.
Enterprises can deploy a unified coding assistant across teams while still choosing the best model for each task.
Key Takeaways
- OpenCode is open‑source and model‑agnostic.
- Plug in any LLM API key to start using it.
- Switch models instantly without leaving the terminal.
- Full cost visibility and control.
- Rivalry with Claude Code in functionality and UI.