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AssemblyAI

Speech AI platform with transcription and audio intelligence

AI Voice & Audio
Free tier
transcription
audio-intelligence
api
summarization

AssemblyAI is Speech AI platform with transcription and audio intelligence. Best for developers who need transcription plus downstream audio intelligence like summaries and topics in one api. Pricing: Pay-as-you-go from ~$0.37/hour; free tier with limited hours for testing (verify on site). A free tier is available.

See AssemblyAI pricing, plans & free tier →

Overview

AssemblyAI offers a speech-to-text API with advanced features including automatic chapter detection, sentiment analysis, topic detection, and PII redaction built on top of transcription. Its models deliver high accuracy across diverse audio conditions. The platform is developer-focused with SDKs for Python, JavaScript, Java, Go, and Ruby.

Best for

Developers who need transcription plus downstream audio intelligence like summaries and topics in one API

Not for

Users needing a consumer-facing UI without coding

What people use it for

Podcast chapter generation
Meeting summarization
Compliance monitoring in call centers
Content moderation on audio platforms

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Frequently asked questions

Is AssemblyAI worth it?
AssemblyAI is worth it if developers who need transcription plus downstream audio intelligence like summaries and topics in one api. It's not the right pick if users needing a consumer-facing ui without coding. A free tier lets you test it at no cost first.
What is AssemblyAI?
AssemblyAI is Speech AI platform with transcription and audio intelligence. It's best for developers who need transcription plus downstream audio intelligence like summaries and topics in one api.
How much does AssemblyAI cost?
Pay-as-you-go from ~$0.37/hour; free tier with limited hours for testing (verify on site)
Does AssemblyAI have a free tier?
Yes, AssemblyAI offers a free tier or free plan.
What are the best AssemblyAI alternatives?
Top alternatives include ElevenLabs, Murf AI, PlayHT (PlayAI). See the full comparison on our AssemblyAI alternatives page.