AssemblyAI

The best way to build Voice AI apps with one robust API

4.8•29 reviews•

6.8K followers

The best way to build Voice AI apps with one robust API

4.8•29 reviews•

6.8K followers

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Transcription

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Realtime Voice AI

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AI Voice Agent Infrastructure

AssemblyAI builds advanced speech language models that power next-generation voice AI applications. Its industry-leading speech-to-text delivers highly accurate transcription along with speaker detection, summarization, PII redaction, LLM gateway, and a Voice Agent API. With async and real-time streaming support, developers can easily integrate AssemblyAI into AI notetakers, voice agents, AI medical scribes, call analytics tools, and more.

AssemblyAI Reviews

The community submitted 29 reviews to tell us what they like about AssemblyAI, what AssemblyAI can do better, and more.

4.8

Based on 29 reviews

Review AssemblyAI?

Reviewers mostly praise AssemblyAI for accurate transcripts, especially on names, numbers, punctuation, and formatting, saying outputs need less cleanup and the API is easy to test and integrate thanks to strong documentation. Users also highlight useful extras like Auto Chapters, sentiment analysis, and real-time capabilities. Founder feedback is sparse but specific: the maker of Nugget AI says streaming and speaker diarization beat Deepgram on customer calls, while the maker of Thinnest AI cites clean APIs and fast iteration. The main complaint is billing friction around removing a card and disabling autopay.

+26

Summarized with AI

Pros

accurate transcription (11)

transcription API (6)

easy integration (5)

excellent documentation (3)

sentiment analysis (3)

content moderation (2)

fast performance (2)

multilingual support (2)

Pros

Cons

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Reviews

All Reviews

Most Informative

•24 reviews

What's great

accurate transcription (11)

Universal 2 addresses the part that makes transcripts actually usable: getting names, numbers, and formatting right automatically. The 24% improvement in proper noun recognition and 21% gain on numerical data are not just benchmark wins - they translate directly into transcripts that need significantly less manual cleanup.

What stands out is the formatting layer. Handling punctuation, casing, email addresses, and monetary amounts consistently means the output is ready to work with immediately, not just technically correct. For anyone processing call recordings, meeting transcripts, or interview audio at any volume, that reduction in editing time compounds quickly.

The free tier makes it straightforward to evaluate before scaling, which is the right approach for a tool that lives or dies by how it performs on your specific data.

We also reviewed Universal 2 on our platform https://www.producthunt.com/products/completeaitraining-com — where we list and categorize 7,000+ AI tools for different jobs and skills.

Ratings

Ease of use

Reliability

Value for money

Customization

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32 views2mo ago

•8 reviews

AssemblyAI isn’t just a transcription engine—it’s a full-fledged audio intelligence platform. With top-tier accuracy, rich audio features, real-time capabilities, scalable APIs, and rapid innovation, it's an incredible asset for anyone working with voice/video data. If you're a developer, podcaster, researcher, or enterprise looking to build or analyze audio at scale, AssemblyAI is absolutely worth exploring.

What's great

accurate transcription (11)real-time transcription (1)rich audio features (1)scalable APIs (1)

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124 views11mo ago

used AssemblyAI to build Nugget AI

•3 reviews

Nugget is built on real-time interview transcription, so latency and accuracy on conversational audio were non-negotiable. AssemblyAI's Universal-Streaming plus speaker diarization out-performed Deepgram in my testing on actual customer calls — fewer dropped words, cleaner speaker separation. The API was also the cleanest to integrate; I had a production pipeline running in a day. LeMUR was the bonus that sealed it.

Alternatives Considered

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3 views9d ago

used AssemblyAI to build NeuraVid

•3 reviews

When selecting a speech-to-text & audio intelligence provider for NeuraVid.io, we compared several options, including Deepgram, Rev AI, AWS Transcribe, and Whisper-based APIs. We ultimately chose AssemblyAI because of the following key advantages: superior transcription quality, multilingual & the best speaker diariaztion that we tested

What's great

accurate transcription (11)multilingual support (2)speaker diarization (1)

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116 views1yr ago

used AssemblyAI to build Inkr 2.0

•7 reviews

What sets AssemblyAI apart is its simplicity and seamless integration for transforming speech into meaningful text. Their API is easy to implement, providing highly accurate and fast transcription with industry-leading accuracy, while also offering features like sentiment analysis and content moderation out of the box.

What's great

fast performance (2)easy integration (5)accurate transcription (11)sentiment analysis (3)transcription API (6)content moderation (2)

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72 views1yr ago

used AssemblyAI to build Inkr

•7 reviews

What's great

fast performance (2)easy integration (5)accurate transcription (11)sentiment analysis (3)transcription API (6)content moderation (2)

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20 views1yr ago

•2 reviews

Tried it via API, the product does his job wonderfully. Maybe a small note regarding the fierce competition in the field is needed, 11Labs is still the elephant in the room

What's great

accurate transcription (11)transcription API (6)

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14 views9mo ago

used AssemblyAI to build Me.bot

•3 reviews

AssemblyAI offers an advanced, easy-to-integrate speech recognition API that excels in transcribing audio data accurately. It supports a range of media types! Super handy to use.

What's great

easy integration (5)accurate transcription (11)

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2 views2yr ago

•2 reviews

The precision was impressive, yet it was the comprehensive documentation and distinctive features such as Auto Chapters and Sentiment Analysis that truly swayed us.

What's great

excellent documentation (3)accurate transcription (11)sentiment analysis (3)auto chapters (1)

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13 views1yr ago

AssemblyAI

Fantastic! Thank you for the thoughtful feedback! It’s great to see these elements making an impact!

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1yr ago

used AssemblyAI to build Thinnest AI

•4 reviews

AssemblyAI made it easy to build production-ready voice workflows with accurate transcription, clean APIs, and great documentation. Their startup support helped us experiment and iterate quickly.

Alternatives Considered

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4 views11d ago

1 2 3

The free tier makes it straightforward to evaluate before scaling, which is the right approach for a tool that lives or dies by how it performs on your specific data.

We also reviewed Universal 2 on our platform https://www.producthunt.com/products/completeaitraining-com — where we list and categorize 7,000+ AI tools for different jobs and skills.