Work with agents for $10 a month

What OpenCode Go is, what the $10 plan includes and how to get your first project running with DeepSeek V4.1 Flash, step by step.

Published 21 October 2026

OpenCode is a coding agent that works inside your project: it reads files, proposes changes, applies them and runs commands. Go is its monthly subscription. For $10 a month you get a set of models under a shared monthly limit, without opening an account with every provider or paying per token.

What OpenCode and Go are

OpenCode is an open-source coding agent. You use it from a desktop app, and when you open a folder it works on that project. It is not a chat that hands back snippets to paste: it can read, edit several files and run the commands you ask for.

Go is not a model. It is an OpenCode subscription that gives you a catalogue of models for a fixed fee. The page lists a cap per model, but they are not separate wallets: usage across all models counts toward one shared monthly limit.

What you need

A Mac, Windows or Linux machine. Builds exist for all three.
An opencode.ai account and a payment method for the subscription.
The API key from the console at hand when you connect the app.

Download the desktop app

Downloads are at opencode.ai/download. Pick the package for your system:

macOS: Apple Silicon or Intel.
Windows: x64 or ARM64.
Linux: .deb and .rpm packages.

Install the app and open it.

Subscriptions are managed at opencode.ai/console/go. Create an account if you do not have one and choose a plan:

Plan	Price	What changes
Go	$10/month	Catalogue access at the base limits
Go Plus	$40/month	The same models, with higher limits

Connect

To get the key, open Settings › Service accounts in the console. The console does not show a personal Go key: keys live inside a service account. If you do not have one, create it with Add Service Account, open it and click Add API Key. Copy the key: it is shown only once.

In the app, open Settings → Providers, find OpenCode Go and click Connect. Paste the API key you copied from the service account.

Choose a model

With the account connected, open the app’s model selector and choose DeepSeek V4.1 Flash: it is fast, has 1M of context and an $80/month cap on Go ($160 on Plus).

It is not the only option. Most models in the catalogue cap at $60/month on Go, and several at $15.

Start working

Open the folder from the app and write your first request about what you want to do. For example, tell it which files and folders to read, explain what you want to achieve and ask for a plan before it touches anything: “Don’t change anything yet: show me the plan and the files you would touch.” When the plan makes sense, ask it to go ahead.

Tip: Once you are connected and ready, you can ask the agent itself to help you configure all of OpenCode and set it up the way you want.

Limits and free models

The plan has one total monthly limit, and the per-model figures do not add up: each one is the most that model can consume within that total. If you use one up, the plan runs out of balance even when the others are untouched, so you cannot move to another paid model until it renews. The console shows your usage.

There are also free models for a limited time: DeepSeek V4.1 Flash Free, GLM-5.3-Flash Free, MiniMax M3.1 Flash Free, LongCat 2.5 Preview Free and Beam Free. The free version works with 200K of context, against 1M on the paid version. The list changes, so check it in the console.

When it falls short

Go does not replace a top-tier model for everything. For work that touches very large and complex databases, it falls short of the most expensive models.

For fast, well-defined work, it is more than enough: scoped changes, tests, documentation, scripts and new pages. If the job is large, break it into parts and review in between.