SELF-HOSTED MODELS FOR COPILOT CHAT.

NONE, LOW, HIGH, MAX EFFORT SUPPORTED.
Yoke
BRING YOUR OWN RUNTIME
Outbound request
You choose
the endpoint
POST /v1/chat/completions host: 127.0.0.1:8000 authorization: Bearer sk-a41f… model: deepseek-v4-flash stream: true hosted API tokens:0
Preflight
Three checks
before you fly
Yoke brings self-hosted inference to VS Code's native Copilot Chat without replacing its model picker, agent mode, tools, instructions, or skills. It requires VS Code 1.116 or later and a GitHub Copilot plan; the Free tier works. The checks below were verified against a live vLLM deployment.
Your endpoint, your credentials
A key is required only for api.deepseek.com. Self-hosted endpoints can run without one. If you configure a key for another provider, Yoke stores it in VS Code's SecretStorage and sends it to that endpoint.
Thinking you can see
vLLM and SGLang stream reasoning as delta.reasoning; hosted DeepSeek uses delta.reasoning_content. Yoke accepts both and supports none, low, high, and max reasoning effort for compatible DeepSeek models.
The window you actually have
Declare each model's ID, context window, output limit, and capabilities. Invalid entries are logged and skipped; the built-in DeepSeek models remain available, so the picker is never empty.
Instruments
Two settings
For a basic self-hosted setup, point Yoke at your OpenAI-compatible endpoint and describe the models it serves. Additional settings cover registries, vision, timeouts, diagnostics, and tool-list stabilization.
Sizing the window. Hosted APIs often account for prompt and completion separately. Self-hosted runtimes usually share one context budget. For vLLM, set maxInputTokens to max_model_len minus maxOutputTokens.
"yoke.baseUrl": "http://127.0.0.1:8000/v1", "yoke.customModels": [ { "id": "deepseek-v4-flash", "name": "DeepSeek V4 Flash (local)", "maxInputTokens": 983040, "maxOutputTokens": 65536 } ]
Airspace
Bring your own
runtime
Use any endpoint that implements /v1/chat/completions. Yoke sends a standard OpenAI-compatible request by default and adds DeepSeek's proprietary thinking field only when thinkingParam is set to deepseek, so strict gateways do not receive unsupported fields.
Decision matrix
Compared to alternatives
| Capability | YOKE | Local proxy (e.g. LiteLLM) |
Standalone DeepSeek extensions |
|---|---|---|---|
| Works inside Copilot Chat | Yes | Yes | No: Separate UI |
| Agent mode, tools, skills | Yes | Yes | Caution: Reimplemented |
| Vision support | Yes: Native + proxied | No | No |
| No extra process to run | Yes | No | Yes |
| One-click install | Yes | No | Yes |
| API key in OS keychain | Yes | No | Caution: Varies |