AssemblyAI
assemblyai.comBuild Difficulty: 5/5
Build a working replacement in a weekend with AI tools
AI models to transcribe and understand speech
How to Replace AssemblyAIOverview
Features
38 features across 17 categories
AI Integration(1)
Unified voice-to-intelligence workflow unifying speech transcription with LLM capabilities in one API
AI Model(3)
High-accuracy speech model supporting 99 languages with strong out-of-the-box performance for general-purpose use cases
Most advanced speech language model with prompt-based architecture for deeper contextual understanding and domain-specific customization
Ultra-fast, ultra-accurate real-time transcription model designed for voice agents with built-in turn detection and unlimited concurrency
Applications(1)
Built-in features and capabilities designed specifically for building voice agent applications
Compliance(2)
Data storage and processing within EU for GDPR compliance
Business Associate Agreement and HIPAA compliance for healthcare applications
Content Moderation(2)
Detect sensitive content in audio and video files including hate speech, violence, sensitive social issues, alcohol, and drugs
Automatically filter out profanity from transcripts
Core Transcription(2)
Transcribe pre-recorded audio and video files with high accuracy using Universal models with language detection and formatting
Real-time transcription of live audio and video with ultra-low latency and high accuracy
Customization(3)
Define custom spelling for words to ensure accurate transcription of specialized terminology
Provide up to 1,000 words or phrases to improve transcription accuracy for specific terminology
Control transcription behavior with plain language prompts to provide context and tag audio events
Developer Tools(2)
Comprehensive developer documentation for API integration and implementation
Test AI models without code in an interactive playground environment
Infrastructure(1)
On-premises, EU-based, and VPC deployment options for maximum security and control
Integration(1)
Integration with LiveKit SDK for building voice agents
Localization(1)
Real-time transcription in multiple languages including English, Spanish, French, German, Italian, and Portuguese
Security/Privacy(2)
Identify and remove Personally Identifiable Information such as phone numbers and social security numbers from audio files
Identify and remove Personally Identifiable Information from transcription text before returning to user
Speech Processing(1)
Advanced detection for next-gen end-of-turn controls in streaming transcription
Speech Understanding(6)
Identify a wide range of entities spoken in audio files such as person names, company names, email addresses, dates, and locations
Automatically detect language in multilingual speech
Detect the sentiment of each sentence of speech in audio files
Detect multiple speakers in audio and segment transcript into utterances, showing what each speaker said
Identify speakers by their actual names or roles, transforming generic labels into meaningful identifiers
Automatically convert transcribed audio content from one language to another
Support(2)
Customizable Service Level Agreements and Service Level Objectives for enterprise customers
Enterprise-grade technical support for production deployments
Text Analysis(3)
Identify and track filler words in transcriptions
Accurately identify significant words and phrases in transcription to extract pertinent concepts or highlights
Label the topics spoken in audio and video files using standardized IAB Taxonomy for contextual targeting
Text Processing(5)
Automatically generate summaries over time for audio and video files
Automatically add punctuation and proper casing to transcriptions for clearer outputs
Automatically standardize and format specific types of information in transcripts including dates, phone numbers, and emails
AI-powered automatic summarization of audio and video data with customizable summary types
Get precise timestamp information for each word in transcription
Pricing
Free
- ✓Transcribe up to 185 hours of pre-recorded audio
- ✓Transcribe up to 333 hours of streaming audio
- ✓Up to 5 new streams per minute
- ✓Access to industry-leading Speech-to-Text and Audio Intelligence models
- ✓Developer docs and community support
Pay as you go
- ✓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)
Enterprise
- ✓Tiered pricing options
- ✓Dedicated infrastructure
- ✓Custom model configurations
- ✓Customized solutions for specific needs
Cost Calculator
Pricing data not available for AssemblyAI. Check their website for current pricing.
Build vs Buy
Should you build a AssemblyAI alternative or buy the subscription? Estimate based on 38 features.
Buy AssemblyAI
Better ValueBuild Your Own
Buying AssemblyAI saves ~$36,960 over 3 years vs building.
Estimates based on 38 features and a BuildScore of 5/5. Actual costs vary.
Integrations
21 known integrations