kitio.aiAdded Oct 28, 2026
AssemblyAI
FreemiumSpeech AI API for transcription, diarization and audio understanding
What is AssemblyAI?
AssemblyAI offers speech-to-text models through an API, with speaker labels, timestamps and features such as PII redaction and sentiment. Product teams use it to build meeting tools, call analytics and media workflows, and it supports both batch and streaming transcription.
Its Universal models cover many languages, and transcripts can be passed to language models for summaries and questions. Billing is per hour of audio with free credit to start, and SDKs are available for major languages.
Features
- Batch and streaming transcription
- Speaker diarization
- PII redaction
- Sentiment and topic detection
- LLM features over transcripts
Tags
Releases
+ Submit new release- Listed
AssemblyAI was added to the directory.
Organization
AssemblyAI
🇺🇸 United States
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
AssemblyAI plans
Free
Free
- Try the API for free
- No commitment
Pay as you go
$0.21 / hr (Universal-3.5 Pro)
- Universal-2 at $0.15/hr
- Streaming from $0.45/hr
- Add-ons billed per hour
Custom
Custom
- Custom rate limits
- Higher concurrency
- Enterprise-grade flexibility
Prices in USD, checked Oct 28, 2026. Plans change often, so confirm on the AssemblyAI site.Official pricing
Sponsored
Your AI tool here
A Featured launch puts your tool in this spot and on the home page for a week.
Top AssemblyAI alternatives
View allAudio & voice
Microsoft's speech-to-text, text-to-speech and translation APIs
Audio & voice
Speech-to-text, text-to-speech and voice agent APIs for developers
Audio & voice
AWS speech-to-text service for apps, calls and media
Audio & voice
Google's speech recognition API with Chirp models in 100+ languages
Compare AssemblyAI
If you liked AssemblyAI
Speech-to-text API for async and streaming transcription in 57+ languages
FreemiumAudio & voiceMade in United StatesEnterprise speech recognition API with broad language coverage
FreemiumAudio & voiceMade in United KingdomMultilingual speech-to-text API built for real-time voice products
FreemiumAudio & voiceMade in FranceUnified API for hundreds of models with budgets and failover
FreemiumModels & APIsMade in United States
Pros and cons
Pros
- High accuracy on English
- Rich analysis features
- Clear documentation
Cons
- Add-on features cost extra
- No end-user app
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
Share a prompt
Reviews
Q&A
What is AssemblyAI?
AssemblyAI offers speech-to-text models through an API, with speaker labels, timestamps and features such as PII redaction and sentiment. Product teams use it to build meeting tools, call analytics and media workflows, and it supports both batch and streaming transcription.
How much does AssemblyAI cost?
AssemblyAI is freemium.
Is there a free version of AssemblyAI?
Yes. AssemblyAI has a free plan, and paid plans add more usage and features.
What are the main features of AssemblyAI?
Batch and streaming transcription, Speaker diarization, PII redaction, Sentiment and topic detection, LLM features over transcripts.
Who makes AssemblyAI?
AssemblyAI is made by AssemblyAI.
What are the best alternatives to AssemblyAI?
Popular alternatives include Azure Speech, Deepgram, Amazon Transcribe.