How to set up your own API keys for ChatGPT and Claude in one browser tab?

Set up your own API keys for ChatGPT and Claude in one browser tab using MultitaskAI

This task can be performed using MultitaskAI

A unified chat UI for OpenAI, Anthropic, Google and other leading AI models.

Best product for this task

Multit

MultitaskAI is a powerful browser-based chat interface that transforms how you interact with AI. Connect directly to leading models from OpenAI, Anthropic, and Google using your own API keys—ensuring complete privacy and control over your data.

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What to expect from an ideal product

  1. MultitaskAI runs entirely in your browser, so your conversations never touch a third-party server when you plug in your own OpenAI or Anthropic API key.
  2. You pay only for what you use through your own API account, skipping monthly subscription fees charged by most chat wrappers.
  3. Switch between GPT-4o, Claude 3.5, and Gemini inside a single tab without logging in and out of separate tools.
  4. Your API keys stay local to your browser session, which directly addresses the biggest privacy objection people have with shared AI platforms.
  5. Setting up takes under two minutes: paste your key, pick a model, and start chatting with no installs, no extensions, and no account required.

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