How to Get $100 in Free AssemblyAI API Credits

Want $100 in free API credits for speech-to-text? AssemblyAI is handing them out to new accounts, and no credit card is required. You get production-ready transcription with speaker detection, plus audio intelligence like summarization and sentiment analysis.

That $100 covers roughly 280 hours of transcription, expandable to about 370 hours with free-tier allowances. The whole sign-up takes under two minutes.

Tutorial

1. Visit https://assemblyai.cello.so. This is the dedicated claim page for the offer.
2. Sign up with your email. No credit card is needed to create the account.
3. Copy your API key from the dashboard.
4. Start making API calls for free.

Wrapping Up

You now have $100 in AssemblyAI credits and an API key ready to go. Build a transcription pipeline, add voice intelligence to an agent, or test out subtitles — the credit is there to experiment with.