AssemblyAI records 453,591 monthly visits with -6.9% month-over-month growth and Freemium, Contact for Pricing pricing. Tunk.ai records 0 monthly visits with -100% growth and Free Trial, Contact for Pricing pricing.
Speech-to-text and voice intelligence APIs for developers
Voice AI agents and real-time speech-to-text for production call automation
| Dimension / Metric | | |
|---|---|---|
| Official Domain | assemblyai.com | tunk.ai |
| Pricing Model | Freemium, Contact for Pricing | Free Trial, Contact for Pricing |
| Monthly Visits | 453.59K (453,591) | 0 (0) |
| MoM Traffic Delta | -33.48K (-6.9%) | -3.37K (-100%) |
| Primary Market & Share | 🇧🇷 Brazil (30.6%) | 🌐 Global (—) |
| Direct Visits / mo | 281.47K | 0 |
| User Rating | 4.6 | 4.2 |
| Supported Platforms | Website | Website |
Speech-to-text and voice intelligence APIs for developers
Choose pre-recorded transcription for files, a realtime API for live streams and voice agents, or a synchronous endpoint for short clips and dictation.
Layer summarization, sentiment, topic detection, PII redaction, content moderation and guardrails onto transcripts without building your own models.
AssemblyAI-TTS-1 is trained on real phone calls for natural, low-latency speech, targeted at IVR and voice-agent use cases.
Flagship models emphasise exact transcription, speaker labels and native code-switching across many languages, supported by published benchmarks.
Voice AI agents and real-time speech-to-text for production call automation
Describe an agent in plain English and the platform sets up the voice, prompts, knowledge and call flow; then test, refine and deploy to a phone line, an app or the API.
Streaming transcription returns text while the caller is still speaking, covering dozens of languages and accents through the API or the built-in playground.
Hand the agent your own endpoints so it can book, look up and update records mid-call, then write the outcome back to Salesforce, HubSpot or Zoho.
Connect Twilio or Plivo, point a campaign at your contact list, and let the agent handle every call while you manage only the queue.
SpecialistEnterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
SpecialistEnterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Real-time voice AI models and agents you can build on
Real-time speech-to-text, text-to-speech and voice agents in one API platform
Real-time speech-to-text, text-to-speech and voice agents in one API platform
AI communication platform for sales and support teams
Build, test, and deploy production-grade voice AI agents over API
One speech AI API for recognition, generation, and translation in 60+ languages
One speech AI API for recognition, generation, and translation in 60+ languages
Speech-to-text and audio intelligence API for production voice products
Speech-to-text and audio intelligence API for production voice products
Real-time voice AI APIs with 50 ms to first audio
Real-time voice AI APIs with 50 ms to first audio
Low-latency video, voice and AI-agent APIs for developers
Low-latency video, voice and AI-agent APIs for developers
Enterprise AI voice agents that work inside your phone system
SpecialistB2B AI audio models for stem separation, transcription, mastering, and voice processing
SpecialistB2B AI audio models for stem separation, transcription, mastering, and voice processing
Developer-first speech-to-text API with industry-leading accuracy
