Send prompts to multiple AI platforms simultaneously and compare responses
Users
3
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#299K
#244K among extensions
Version
1.1.0
updated 31 Dec 2025
Users
monthly, 10 months
Latest, 16 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About PromptCast
PromptCast - Broadcast Your Prompts to Multiple AI Platforms
Stop switching between AI tabs. Send your prompt once and get responses from ChatGPT, Claude, Gemini, and Perplexity all at the same time.
HOW IT WORKS
1. Type your prompt in PromptCast
2. Select which AI platforms to use
3. Click "Send to All" (or press Ctrl+Enter)
4. Compare responses side-by-side
KEY FEATURES
• Multi-Platform Broadcasting
Send prompts to ChatGPT, Claude, Gemini, and Perplexity with a single click. Toggle platforms on or off based on your needs.
• Response Comparison
View all AI responses in a unified comparison view. Switch between Grid, Tabs, or Stack layouts to find what works best for you.
• Export Options
Save your comparisons as JSON, CSV, or PDF for documentation, research, or sharing.
• Prompt History
Access your previous prompts and their responses. Never lose a great prompt again.
• Smart Retry
Failed to inject a prompt? PromptCast automatically retries to ensure your prompt gets through.
• Desktop Notifications
Get notified when all AI responses are complete so you can multitask while waiting.
PERFECT FOR
- Researchers comparing AI model outputs
- Writers seeking diverse creative suggestions
- Developers testing prompts across platforms
- Anyone curious about how different AIs respond
REQUIREMENTS
- Must be logged into the AI platforms you want to use
- Works with: chat.openai.com, claude.ai, gemini.google.com, perplexity.ai
PRIVACY
PromptCast runs entirely in your browser. Your prompts are sent directly to the AI platforms you select—we never collect or store your data on external servers.
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Built with care. No tracking. No ads. Just productivity.