How to use GitHub Copilot with Subconscious
Let your AI do the setup. Paste this into Claude Code, Cursor, ChatGPT or any assistant.
Set up GitHub Copilot to use Subconscious as its model provider. Subconscious is an inference API for agents. It serves open models through OpenAI- and Anthropic-compatible endpoints, billed per token. - OpenAI-compatible base URL: https://api.subconscious.dev/v1 - Anthropic-compatible base URL: https://api.subconscious.dev - Model: subconscious/glm-5.3-marathon - API key: `subc login` saves it for you. Do not ask me for it. Follow these steps. Run commands and edit files yourself. For any step in a settings screen, tell me exactly what to click and what to enter. 1. Install the Subconscious CLI subc is the open-source Subconscious CLI. It signs you in, stores your API key, and wires coding agents to the Subconscious API. ```bash npm install -g subconscious-cli ``` 2. Log in This opens your browser to sign in or create an account, then saves your API key and a ready-to-use default profile on your machine. ```bash subc login ``` 3. Connect GitHub Copilot subc adds Subconscious as a custom model endpoint in VS Code and installs the Copilot conversation and context compaction hooks. ```bash subc copilot install ``` Full guide: https://www.subconscious.dev/agents/terminal-and-ide/copilot.md When you are done, confirm the tool is using subconscious/glm-5.3-marathon, then summarize what you changed.
To use GitHub Copilot with Subconscious, install the Subconscious CLI with npm install -g subconscious-cli, run subc login, then run subc copilot install. subc points GitHub Copilot at the OpenAI-compatible Subconscious API, so it runs on open models like GLM-5.3 Marathon, billed per token.
Last verified against the GitHub Copilot docs on
Before you start
- Node.js and npm, to install the subc CLI
- A Subconscious account
- GitHub Copilot installed
Set up GitHub Copilot
Step 1: Install the Subconscious CLI
subc is the open-source Subconscious CLI. It signs you in, stores your API key, and wires coding agents to the Subconscious API.
Terminalnpm install -g subconscious-cliStep 2: Log in
This opens your browser to sign in or create an account, then saves your API key and a ready-to-use default profile on your machine.
Terminalsubc loginStep 3: Connect GitHub Copilot
subc adds Subconscious as a custom model endpoint in VS Code and installs the Copilot conversation and context compaction hooks.
Terminalsubc copilot install
Why run GitHub Copilot on Subconscious
- Long sessions stay fast
- 2x faster task completion on long tasks than standard open-model inference, especially past 200k tokens of context.
- Context that keeps going
- The OrangeLine runtime compresses the parts of context that stopped mattering, on the GPU, while the run continues. That gives a 5M+ token context window with no stop-and-compact pause.
- Lower cost on long tasks
- 50% to 80% lower cost on long tasks, because the runtime processes far fewer tokens. Cached input bills at a steep discount, and agentic coding sees cache hit rates above 95%.
- Your data stays yours
- Prompts, inputs and outputs are not recorded, and nothing you send is used to train a model.
Connection details
For any client that takes a custom OpenAI- or Anthropic-compatible endpoint.
- OpenAI-compatible base URL
- https://api.subconscious.dev/v1
- Anthropic-compatible base URL
- https://api.subconscious.dev
- API key
- From subc login or the Subconscious dashboard
- Model
- subconscious/glm-5.3-marathon
- Multimodal, high-throughput model
- subconscious/deepseek-v4.1-flash-marathon
Full reference in the Subconscious API docs.
Questions
- Which model does GitHub Copilot use on Subconscious?
- The default model on your subc profile, subconscious/glm-5.3-marathon unless you change it. subconscious/deepseek-v4.1-flash-marathon is a cheaper, high-throughput alternative that also takes image input. Run subc with no arguments and choose Set default model to switch.
- Does subc change my GitHub Copilot configuration?
- subc merges its provider and hooks into your existing GitHub Copilot configuration and never replaces it. Run subc copilot uninstall to remove them.
- Is GitHub Copilot on Subconscious OpenAI- or Anthropic-compatible?
- This guide connects GitHub Copilot through the OpenAI-compatible Subconscious API. Subconscious serves both formats: OpenAI Chat Completions at https://api.subconscious.dev/v1 and Anthropic Messages at https://api.subconscious.dev.
- How is GitHub Copilot usage on Subconscious billed?
- Per token by default, with no commitment. Heavy users can switch to a monthly token plan: a fixed price for a large daily token allowance shared across your team.
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