- Voice AI Product Teams: Build transcription-powered apps that demand high accuracy and reliability.
- Contact Centers & CX Teams: Analyze calls, detect speakers, and unlock insights from customer conversations.
- Developers & Startups: Ship voice features fast using simple APIs and a no-code playground.
- Analytics & BI Teams: Turn raw audio into structured data for dashboards and reporting.
- Education & Media Platforms: Caption content and support multilingual audiences at scale.
How to Use AssemblyAI?
- Sign Up & Get an API Key: Create an account and grab your key from the dashboard.
- Test in the Playground: Try models on sample or your own audio without writing code.
- Integrate the API: Send audio via REST or streaming to get transcripts and insights back.
- Scale in Production: Monitor usage, optimize features, and ramp to millions of calls as you grow.
- Industry-Leading Accuracy: Lowest Word Error Rate with significantly fewer hallucinations than competitors.
- Rich Speech Understanding: Diarization, auto-formatting, and multilingual detection in one platform.
- Built for Scale: Handles 600M+ inference and 840M+ API calls monthly with no throttling contracts.
- Developer-Friendly: Simple APIs, clear docs, and a no-code playground for fast experimentation.
- Trusted by Top Teams: Powers thousands of Voice AI apps built by innovative companies.
- Very strong accuracy and low hallucinations.
- Deep speech understanding beyond plain transcripts.
- Easy to start with playground and clean APIs.
- Proven ability to scale to heavy, real-world workloads.
- Primarily focused on speech use cases only.
- Requires careful cost monitoring at very high volumes.
- Advanced features may need tuning per use case.
- Full capabilities best leveraged by technical teams.
Free
$ 0.00
Transcribe up to 185 hours of pre-recorded audio for free
Transcribe up to 333 hours of streaming audio for free
Up to 5 new streams per minute
Developer docs, community support, and resources to help you build
Pay as you go
$ 0.15
Unlimited access to Speech-to-Text, Speech Understanding, and LLM Gateway
Unlimited concurrent streams and pre-recorded concurrency starting at 200 files
Customize rate limits - scale to any workload
Dedicated technical support and customized SLAs and SLOs
BAA for HIPAA and compliance with EU Data Residency standards
Self-hosted deployments (On-prem, EU, VPC)
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Editorial Note
This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.
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