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AssemblyAI
AICores
Speech-to-text API with best-in-class accuracy and audio intelligence
15 reviews
Free tierHas API
AssemblyAI offers the best combination of accuracy and audio intelligence features in the speech-to-text API market. The 43% price reduction makes it even more compelling. API-only means it is developer-focused.
What's great
- Best-in-class accuracy
- Rich audio intelligence features
- Competitive pricing after reduction
Watch out for
- API-only - no GUI interface
- Requires developer integration
- Less suitable for simple transcription needs
Quick Facts
PricingFrom $0.37/hour
Free tierYes
PlatformsWeb
APIAvailable
CategoryDeveloper Tools
Q: What is AssemblyAI?
AssemblyAI provides speech-to-text with 8.4% word error rate plus audio intelligence features including sentiment analysis, content moderation, PII redaction, topic detection, and speaker diarization.
Q: How much does AssemblyAI cost?
AssemblyAI starts at $0.37/hour.
Q: Who is AssemblyAI best for?
AssemblyAI is best for developers building apps that need accurate speech-to-text with audio intelligence features.
Q: Is AssemblyAI free?
AssemblyAI offers a freemium model with a free tier. Paid plans start at $0.37/hour.
Best for
Developers building apps that need accurate speech-to-text with audio intelligence features
Not ideal for
Non-technical users who need a simple transcription interface
Starter
$0.37/hour
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AICores Editorial Review
Reviewed by AICores Editorial Team
Last updated: May 2026
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