Unlimited OpenCode Guide - Unlimited AI | One API for AI Models & Token Plans

By Unlimited AI · Updated September 26, 2026

OpenCode lets you choose how you connect to models. For sustained coding work, pair the client with a compatible API provider and an allowance that fits your project, then verify the complete workflow.

What to look for in an unlimited OpenCode plan

OpenCode is the coding tool; the connected provider supplies the model access. An “unlimited” offer should identify the available models, the access window, and the conditions that apply to requests. The tool name alone does not define any of those terms.

Decide whether you need a focused working period or a measurable token allowance. A short coding sprint and a continuously used team workflow have different planning needs. Start with a representative task instead of estimating value from the package name.

Connect a custom provider

The OpenCode provider documentation describes using /connect to add a credential, a provider configuration to define the endpoint and models, and /models to select a model. The custom provider identifier must match the configuration. See the official OpenCode provider guide.

Check the documentation for your installed OpenCode version.
Add the provider credential through the documented connection flow.
Configure the provider's exact base URL and model identifiers.
Select a model and send a small request before attempting repository changes.

OpenCode documentation distinguishes Chat Completions and Responses API provider packages. Its V2 documentation also uses a different provider configuration structure. Match your version and endpoint protocol instead of combining examples from different releases. See the V2 provider reference when using V2.

Evaluate more than a successful chat response

Use a small project to check a three-part workflow: explain a file, propose a limited change, and run an appropriate verification command with your approval. Record where failures occur. This separates a connection problem from a model that struggles with your task.

Check whether the selected model handles the context you provide and returns useful tool requests. More available models do not necessarily mean better results for a specific repository. Keep a short comparison set of tasks and review correctness before considering response speed.

Fix setup problems methodically

Model is missing

Compare the configured model identifier with the provider's current list. Also check that the credential and configuration refer to the same provider.

Requests connect but tasks fail

Check protocol selection, streaming, and tool support. Test the smallest failing task and share its non-sensitive error details with support.

Using Unlimited AI with an OpenCode workflow

Confirm endpoint compatibility and model access before buying specifically for OpenCode. Unlimited AI's token and timed plans are useful options to compare, but this article does not claim that every listed model has been tested with every OpenCode release.

For support, include your OpenCode version, desired model, and whether you need Chat Completions or Responses. That produces a more precise compatibility answer than asking whether an API is simply “unlimited.”