🚀 MiMo Copilot Chat: BYOK Xiaomi AI in VS Code

Use Xiaomi MiMo models (1M token context) in GitHub Copilot Chat. No Copilot Pro needed.

BYOK (Bring Your Own Key). Pay only for what you use.

Why bother · Quick Start · Models · Compare · FAQ · Settings

The pitch

GitHub Copilot Free gives you 2,000 completions/month. Pro costs $10/month. Pro+ costs $39/month.

MiMo Copilot Chat lets you plug Xiaomi MiMo into Copilot Chat using your own API key. You pay only for the tokens you use. MiMo V2.5 has a 1,000,000 token context window and costs a fraction of GPT-4 or Claude.

Trade-off: you need a MiMo API key and pay per token. No subscription, no lock-in.

🔥 Why bother

If you already use Copilot Chat but want a cheaper, longer-context model for big files or long conversations, this extension drops MiMo straight into the model picker. No separate chat window. No new workflow.

	What you get
💸 Cost	Pay per token on MiMo's plan. No monthly subscription.
🌍 Context	Up to 1,048,576 tokens. Fits entire repos and long docs.
🧠 Reasoning	MiMo V2.5 supports chain-of-thought reasoning output.
🔌 Native transport	OpenAI-compatible `/chat/completions`. Tool-calling supported.
🔒 Key storage	Stored in VS Code SecretStorage. Never leaves your machine.
🧩 Seamless	Appears in the Copilot Chat model picker next to GPT and Claude.

⚡ Quick Start (60 sec)

1. Install this extension
2. Open Copilot Chat (Cmd+Shift+I)
3. Click model picker → Manage Models
4. Pick "MiMo" → paste your API key
5. Select mimo-v2.5 → start chatting

Get a MiMo API key at xiaomimimo.com.

Detailed step-by-step

Install GitHub Copilot Chat from the marketplace (required).
Install this extension.
Open GitHub Copilot Chat (Copilot icon in sidebar or Cmd+Shift+I / Ctrl+Shift+I).
Click the model picker (current model name) then Manage Models.
Select MiMo.
Press Enter to accept the default Group Name.
Enter your MiMo API Key when prompted. VS Code stores it as a secret.
Choose the models you want available.
Select any MiMo model from the picker and start chatting.

Tip: If a model shows in the Language Models view but not the chat picker, hover its row and click the eye icon to enable it.

📊 Copilot vs MiMo Copilot Chat

	Copilot Free	Copilot Pro	Copilot Pro+	MiMo Copilot Chat
Price	$0	$10/mo	$39/mo	Pay per token
Monthly limit	2,000 completions	300 chats	Unlimited (fair use)	None (you control spend)
Max context	Varies	Varies	Varies	1,048,576 tokens
Models	GPT-4o, Claude 3.5	+ o3, Claude 3.7	+ GPT-4.1, o3-pro	MiMo V2.5 / Pro
Key ownership	GitHub	GitHub	GitHub	You

Not a replacement for Copilot. This extension adds MiMo models into the existing Copilot Chat interface.

🧠 Models

The extension fetches the live model list from:

https://token-plan-sgp.xiaomimimo.com/v1/models

Bundled model limits

Model	Context window	Max output tokens
`mimo-v2.5`	1,000,000	128,000
`mimo-v2.5-pro`	1,048,576	128,000

Endpoint routing

All models use the OpenAI-compatible chat completions endpoint:

https://token-plan-sgp.xiaomimimo.com/v1/chat/completions

⚙️ Settings

Setting	Default	Description
`xiaomi-mimo.temperature`	`0.2`	Sampling temperature (`0` to `2`)
`xiaomi-mimo.maxTokens`	`0`	Max output token override (`0` = per-model default)
`xiaomi-mimo.maxInputTokens`	`0`	Context window override (`0` = per-model default)
`xiaomi-mimo.requestTimeoutSeconds`	`300`	Total request timeout
`xiaomi-mimo.streamIdleTimeoutSeconds`	`90`	Cancels if stream goes silent too long
`xiaomi-mimo.showUsageStatusBar`	`true`	Show token usage in status bar
`xiaomi-mimo.debugLogging`	`false`	Verbose diagnostics to output channel
`xiaomi-mimo.freeOnly`	`false`	Show only free MiMo models in picker

Commands

Command	What it does
`MiMo: Manage Provider`	Manage API key, refresh models, test connection
`MiMo: Set API Key`	Store or update your MiMo API key
`MiMo: Diagnostics`	Show registered models and recent request summaries

❓ FAQ

Do I need Copilot Pro?

No. A free GitHub account is enough. You sign in to Copilot Chat with your GitHub account, then select a MiMo model from the picker.

How much does MiMo cost?

MiMo runs on a token-based plan. You pay for what you use. Check xiaomimimo.com for current pricing. It is significantly cheaper than GPT-4 or Claude for large context tasks.

Is my API key safe?

Yes. The key is stored in VS Code's SecretStorage, encrypted by the OS keychain. It never gets sent anywhere except directly to the MiMo API.

Can I use this without Copilot Chat?

No. This extension adds models into Copilot Chat. You need the GitHub Copilot Chat extension installed and signed in.

Does it support tool calling / agent mode?

Yes. Tool schemas are forwarded using the OpenAI-compatible request format.

What if MiMo API is down?

The extension keeps a bundled fallback model catalog so the picker stays usable. Requests will fail until the API recovers, with clear error messages.

Can I use this offline?

You need internet to send chat requests. The model picker works offline thanks to the bundled catalog.

🛠️ Development

npm install
npm run compile      # build
npm run watch        # watch mode
npm run package      # create .vsix

Press F5 in VS Code to launch an Extension Development Host.

💬 Community

Found a bug or want a feature? Open an issue.

Found this useful? Please star the repo and leave a review on the marketplace. It helps others find it.

Sibling extensions

OpenCode Copilot Chat - 33+ models (DeepSeek, Kimi, GLM, GPT, Gemini, Grok, free models) in Copilot Chat
Cline Copilot Chat - ClinePass models in Copilot Chat

⭐ Star History

📄 License

MIT. See LICENSE.

Built by ltmoerdani. If this helps you, consider giving it a star.

MiMo Copilot Chat: BYOK Xiaomi AI Models (1M Context)

Laksmana Tri Moerdani