AssemblyAI records 453,591 monthly visits with -6.9% month-over-month growth and Freemium, Contact for Pricing pricing. Vatis Tech records 41,675 monthly visits with -33.8% growth and Free Trial, Contact for Pricing pricing.
Speech-to-text and voice intelligence APIs for developers
Accurate audio and video transcription, with an API for developers
| Dimension / Metric | | |
|---|---|---|
| Official Domain | assemblyai.com | vatis.tech |
| Pricing Model | Freemium, Contact for Pricing | Free Trial, Contact for Pricing |
| Monthly Visits | 453.59K (453,591) | 41.68K (41,675) |
| MoM Traffic Delta | -33.48K (-6.9%) | -21.23K (-33.8%) |
| Primary Market & Share | 🇧🇷 Brazil (30.6%) | 🇷🇴 Romania (29.9%) |
| Direct Visits / mo | 281.47K | 18.15K |
| 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.
Accurate audio and video transcription, with an API for developers
Upload audio or video by file, link or live browser recording. Vatis accepts MP3, WAV, M4A, FLAC, AAC and OGG audio plus MP4, MKV, AVI, MOV and WebM video, and typically returns a 1-hour file in under a minute.
Interviews, meetings and podcasts get automatic speaker labels, extracts of key quotes, chapter markers and a summarised version of the recording, all generated from the same transcript.
The asynchronous Speech-to-Text endpoint supports payloads of any length and returns diarization and word-level timestamps. Every new account gets €10 of credit for building against the API.
Turn a transcript into subtitles or captions in another language without leaving the platform, and export timed files as SRT or VTT for video workflows.
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.
Unlimited AI transcription of audio and video in 98+ languages
Unlimited AI transcription of audio and video in 98+ languages
AI transcription and meeting notes in 150+ languages
AI transcription and meeting notes in 150+ languages
SpecialistExcels at ultra-low latency text-to-speech generation, but focuses less on comprehensive asynchronous audio intelligence and summarization.
SpecialistExcels at ultra-low latency text-to-speech generation, but focuses less on comprehensive asynchronous audio intelligence and summarization.
Turn any video or audio into text in seconds
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
SpecialistSpecializes in orchestrating complete conversational voice agent pipelines rather than raw standalone transcription APIs.
AI transcription, translation and subtitles for audio and video
AI transcription, translation and subtitles for audio and video
AI transcription that turns audio and video into searchable text
AI transcription that turns audio and video into searchable text
Delivers high-accuracy speech-to-text and translation across numerous languages, but with a more streamlined feature set.
Delivers high-accuracy speech-to-text and translation across numerous languages, but with a more streamlined feature set.
AI transcription and subtitle generation in over 100 languages
AI transcription and subtitle generation in over 100 languages
Speech-to-text and audio intelligence API for production voice products
Speech-to-text and audio intelligence API for production voice products
