NextChat

NextChat (formerly ChatGPT-Next-Web) is a lightweight, self-hostable web / desktop AI client.

Steps (in the UI)

1. Open NextChat and go to Settings.

2. Find Custom Endpoint or the OpenAI endpoint settings, and enable the custom toggle.

3. Fill in:

   Field	Value
   Endpoint / API Host	https://gateway.mindproxy.ai
   API Key	your sk-...
   Custom Models	gpt-4o-mini,claude-3-5-sonnet,gemini-1.5-pro

   TIP

   NextChat usually appends /v1 automatically, so the domain is enough; add /v1 if you get a 404. Separate multiple custom models with commas.

4. Save and switch to your model at the top of the chat.

Self-hosted environment variables

If you deploy NextChat yourself, point it at the platform directly:

BASE_URL=https://gateway.mindproxy.ai
OPENAI_API_KEY=sk-your-key
CUSTOM_MODELS=+gpt-4o-mini,+claude-3-5-sonnet,+gemini-1.5-pro

Troubleshooting

• 404: adjust /v1 on the address.
• Target model missing in the switcher: add the model ID to "Custom Models / CUSTOM_MODELS".
• See common troubleshooting.