Immersive Translate

Immersive Translate

Real-time bilingual translation for any webpage, powered by your own AI key

Introduction

Immersive Translate is a free browser extension that overlays bilingual translations directly on any webpage — no copy-pasting, no tab-switching. By connecting it to TokenMix, you use your own AI API key, which means you pay only for what you translate (often less than $1/month for typical use) and you can pick the best model for each job.

Prerequisites

  1. Install the extension — Download Immersive Translate from the Chrome Web Store or Firefox Add-ons. It also supports Edge, Safari (macOS/iOS), and the official Android app.

  2. Get a TokenMix API key — Sign up at tokenmix.ai, go to Console → API Keys, and create a key starting with sk-tm-. Keep it handy — you will paste it in the next step.

Setup Steps

  1. Click the Immersive Translate icon in your browser toolbar, then click Settings (the gear icon).

  2. In the left sidebar, go to Translation Services.

  3. Scroll down and select OpenAI from the list of AI providers.

  4. Fill in the fields:

    • API Key: paste your sk-tm- key from TokenMix
    • Custom API URL (also called "API Endpoint" or "Custom API Interface"): enter the full path:
      https://api.tokenmix.ai/v1/chat/completions

      ⚠️ Important: You must use the complete /chat/completions path. Entering only https://api.tokenmix.ai/v1 will result in a 404 error.

  5. Choose a model — In the "Model" field, enter one of:

    • deepseek-v4-flash — fastest, cheapest, great for everyday browsing
    • gemini-3-flash-preview — excellent multilingual quality
    • claude-haiku-4.5 — precise, nuanced translations
    • qwen3.6-flash — strong for CJK languages

  6. Click Save, then scroll back to the top and click Set as Default Translation Service.

Verify

Open any foreign-language webpage (e.g., a Japanese news article or an English tech blog). Click the Immersive Translate icon and select Translate This Page. Within a few seconds you should see the original text with your language translation displayed beneath each paragraph.

If translation works, you are all set. Your API usage is tracked in the TokenMix console under Usage.

FAQ

Q: I get a 404 error when translating. A: The most common cause is an incomplete API URL. Make sure the Custom API URL is set to https://api.tokenmix.ai/v1/chat/completions — not just /v1.

Q: Which model should I use? A: deepseek-v4-flash is the best default: fast, cheap, and accurate for most languages. Switch to claude-haiku-4.5 if you need higher precision on technical or literary content.

Q: How much will it cost? A: Very little. A typical user translating a few articles per day spends under $0.50/month. You can monitor real-time usage in the TokenMix console.

Q: Does this work on PDFs and ebooks? A: Yes — Immersive Translate supports PDF mode (in-browser PDF viewer) and EPUB files. The same API settings apply.