What is AssemblyAI?

AssemblyAI is an AI company specializing in speech recognition, turning speech into text and analyzing content.

Try AssemblyAI no-code playground for free :

AssemblyAI's API

Image : Assemblyai Playground screenshot

What are the key features of AssemblyAI?


  • Async speech-to-text.
  • Custom vocabulary.
  • Multi-language support.
  • Speaker diarization.
  • Confidence scores.
  • Auto punctuation and casing.
  • Word timings.
  • Profanity filtering.
  • Filler words.
  • Automatic language detection.
  • Custom spelling.

Streaming Speech-to-Text

  • ITN or formatting.
  • Streaming transcription.
  • Auto punctuation and casing.
  • End of utterance detection.
  • Custom vocabulary.

Speech Understanding

  • Audio intelligence.
  • LeMUR.
  • Summarization.
  • Sentiment analysis.
  • Content moderation.
  • PII redaction.
  • Entity detection.
  • Topic detection.
  • Auto chapters.
  • Key phrases.
  • Summarize audio data.
  • Extract and generate data.

Speech Recognition In Java Using @AssemblyAI | Convert Speech To Text  (Source : Youtube Channel : AssemblyAI )

What's Assembly AI's edge over other models?

Access powerful AI models to transcribe and understand speech via a simple API.

The key stats of assembly ai are:

  • Trained on 12.5 million hours of training data.
  • Outperforms APIs from Azure, AWS, and Google by 22% and is 3.5% more accurate than models like Whisper.
  • Up to 30% fewer hallucinations compared to seq2seq models like Whisper.
  • 71% better speaker count estimation and 14% better word timestamp estimation compared to prior models of assembly ai.
  • It takes just 38 seconds for Assembly AI to process a 60-minute audio file.

Assembly AI Integrations

  • LangChain
  • Make
  • Semantic Kernel
  • Rivet
  • Zapier
  • Twilio
  • AWS
  • Community
  • Cloudflare
  • Recall
  • Haystack
  • LIamaIndex

What are the use cases of AssemblyAI?

Media and Entertainment

  • Media Monitoring
  • Content Creation

Business Intelligence

  • Conversation Intelligence
  • Market Research

Other Use Cases

  • Customer Support
  • Accessibility
  • E-learning.
  • Legal.
  • Healthcare.
  • Government.
  • Security.
  • Research.
  • Human Resources.
  • Finance.
  • Real Estate.

What are the pros and cons of AssemblyAI?

Pros of AssemblyAI

  • Easy to integrate.
  • Always up-to-date.
  • Pricing that scales.
  • Accuracy.
  • Scalability.
  • Security.
  • Versatility.
  • Accessibility.
  • 24/7 customer support.

Cons of AssemblyAI

  • Cost.
  • Limited customization.
  • Potential biases.

  • AssemblyAI offers free, paid, and custom plans.
  • The AssemblyAI pricing plans start at $0.12 per hour.

faqs icon for ai tools  Frequently asked questions

Can AssemblyAI handle different languages?

Yes, AssemblyAI supports transcription in multiple languages.

Does AssemblyAI remove profanity?

Yes, AssemblyAI offers profanity filtering.

Can AssemblyAI identify different speakers?

Yes, speaker diarization allows identifying individual speakers in a recording.

Does AssemblyAI analyze the content of speech?

Yes, AssemblyAI offers features like sentiment analysis and summarization.

Can AssemblyAI be integrated with other tools?

Yes, AssemblyAI integrates with various platforms like Zapier and Twilio.

What can AssemblyAI be used for in media?

It can be used for tasks like video captioning and creating transcripts of meetings or interviews.

Is AssemblyAI free to use?

AssemblyAI offers a free trial, with paid plans starting at $0.12 per hour.

What are the downsides of AssemblyAI?

Costs can increase with large data volumes, customization options might be limited, and there's potential for bias in transcriptions.

Does AssemblyAI offer customer support?

Yes, AssemblyAI provides 24/7 customer support.

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