Immersive Translate with gpt88.cc

Step-by-step guide for connecting the Immersive Translate browser extension to gpt88.cc through an OpenAI-compatible API.

Use cases

  • Full-page webpage translation.
  • Technical documentation translation.
  • Segmented translation for papers, blogs, and product docs.
  • Cases where you want more natural output than baseline machine translation.

Preparation

checklisttext
1. Install the Immersive Translate browser extension
2. Prepare a gpt88.cc API key
3. Confirm the chat model you want to use
4. Make sure the browser can access the target page
5. Prepare a short page or short paragraph for the first test

Step 1: Fill in service settings

Choose the OpenAI-compatible service inside Immersive Translate, then fill the fields below.

setuptext
Service Type: OpenAI Compatible / Custom OpenAI
API Key: sk-your-gpt88-api-key
API URL / Base URL: https://api.gpt88.cc
Model: gpt-5-2-chat-latest
Temperature: 0.2 - 0.5

Step 2: Walk through the setup

flowtext
1. Open the browser extension management page
2. Enter Immersive Translate settings
3. Find AI translation service / OpenAI settings
4. Choose OpenAI Compatible or Custom OpenAI
5. Paste the API key
6. Set Base URL to https://api.gpt88.cc
7. Set the model name to gpt-5-2-chat-latest
8. Save
9. Open a short webpage and test translation

Step 3: Improve the translation prompt

If the extension supports a custom system prompt, use a constrained translation prompt. For technical content, preserve terminology instead of letting the model improvise.

translation-prompttext
You are a professional translation assistant.
Translate the user text into Simplified Chinese.
Requirements:
1. Preserve the original paragraph structure
2. Keep technical terminology accurate
3. Do not add explanations
4. Do not output anything unrelated to the translation

Step 4: Verify translation quality

verifytext
Test text:
The model supports streaming responses and tool calls.

Expected result:
The translation should sound natural in Chinese while preserving the technical meaning of streaming responses and tool calls.
  1. Start with one short English paragraph.
  2. Confirm the translation does not add extra explanation.
  3. Then test a longer page with segmented translation.
  4. If cost is high, shorten each request or switch to a lighter model.

Troubleshooting

troubleshootingtext
1. The translate button does nothing
   - Check whether the extension is enabled
   - Check whether the current page allows extension execution

2. 401 response
   - Check whether the API key is complete
   - Remove accidental spaces around the key

3. 404 response
   - Base URL should be https://api.gpt88.cc
   - The model ID must be a real supported model

4. Translation is too slow
   - Switch to a lighter model
   - Reduce the paragraph length per request

5. Translation style is unstable
   - Lower Temperature
   - Use a fixed system prompt

Next steps