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AssemblyAI

AI models to transcribe and understand speech

Monthly visits
487.1K
Pricing
Paid
Pay as you go - Universal-3.5 Pro, Pay as you go - Universal-2, Realtime - Universal-3.6 Pro Realtime, Realtime - Universal-Streaming
Added
Mar 07 2023

About AssemblyAI

AssemblyAI delivers platform-level Voice AI infrastructure, offering APIs for pre-recorded and real-time speech-to-text, dictation, and other voice analytics to developers building voice-enabled products. The tool supports multiple workflows, including transcription, real-time streaming, and extraction of insights from speech, and is used to power voice applications in various domains. It presents itself as a single platform consisting of models, APIs, and deployment options to fit different stack requirements.

The platform emphasizes that audio data can be processed in managed cloud or self-hosted environments, with enterprise-grade uptime and global redundancy. It provides a no-blocking pricing approach and scalability from small MVPs to production-scale usage. Documentation and SDKs are available to integrate with codebases, and there are references to integration with partner tools and frameworks.

Users can access a suite of APIs tailored to specific parts of a voice product: transcription (pre-recorded, streaming, and sync), understanding (extraction of insights), and voice-agent capabilities, along with guardrails and an LLM gateway. The product is positioned as suitable for building voice agents, notetakers, call analytics, medical transcription, and other voice-centric workflows.

It references integrations and tools for deployment and orchestration across a range of environments.

Use cases

  • Voice Agents
  • AI Notetakers
  • Call Analytics
  • Dictation

Key features

  • Pre-recorded Speech-to-Text API
  • Realtime Speech-to-Text API
  • Sync Speech-to-Text API
  • Voice Agent API
  • Speech Understanding API
  • Dictation API
  • Self Hosted / Cloud options
  • Languages support

Pros and cons

Pros

Supports both hosted and self-hosted deployment
No concurrency limits or throttles (pricing note: see plans)

Pricing

Pay as you go - Universal-3.5 Pro
$0.21 /hr
  • Universal-3.5 Pro transcription
  • Add-on: Keyterms Prompting
  • Speaker Diarization
  • Medical Mode
Pay as you go - Universal-2
$0.15 /hr
  • Universal-2 transcription
  • Add-on: Keyterms Prompting
  • Speaker Diarization
  • Medical Mode
Realtime - Universal-3.6 Pro Realtime
$0.45 /hr
  • Realtime transcription
  • Context carryover
  • Speaker labels
Realtime - Universal-Streaming
$0.15 /hr
  • Realtime streaming transcription
  • Multilingual options

Reviews

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Frequently asked questions

What is AssemblyAI used for?
AssemblyAI provides Voice AI infrastructure including transcription, speech understanding, and voice agent capabilities for building voice-enabled products.
What platforms does it support?
The platform offers web/API access and can be deployed in managed cloud or self-hosted environments.
What languages are supported?
Supports 99 languages.

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