AssemblyAI records 453,591 monthly visits with -6.9% month-over-month growth and Freemium, Contact for Pricing pricing. Fish Audio records 8,557,159 monthly visits with +1.6% growth and Freemium pricing.
Speech-to-text and voice intelligence APIs for developers
Studio-grade AI text to speech and voice cloning
| Dimension / Metric | | |
|---|---|---|
| Official Domain | assemblyai.com | fish.audio |
| Pricing Model | Freemium, Contact for Pricing | Freemium |
| Monthly Visits | 453.59K (453,591) | 8.56M (8,557,159) |
| MoM Traffic Delta | -33.48K (-6.9%) | +133.4K (+1.6%) |
| Primary Market & Share | 🇧🇷 Brazil (30.6%) | 🇺🇸 United States (15.6%) |
| Direct Visits / mo | 281.47K | 3.7M |
| User Rating | 4.6 | 4.4 |
| 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.
Studio-grade AI text to speech and voice cloning
Type or paste a script and generate natural narration, with inline emotion and delivery tags such as [whispering], [angry] or [laughing].
Create a usable voice clone from a short audio sample and reuse it across scripts and languages.
Browse and use a large catalog of community voices covering many languages and character styles.
Transcribe audio with multilingual support and emotion or speaker cues for downstream editing.
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.
Industry-leading voice cloning and text-to-speech quality, but lacks Fish Audio's open-source model flexibility and self-hosting options.
Industry-leading voice cloning and text-to-speech quality, but lacks Fish Audio's open-source model flexibility and self-hosting options.
SpecialistTurn scripts into studio-quality AI avatar videos in minutes
SpecialistText to speech and voice AI across every device
SpecialistText to speech and voice AI across every device
SpecialistReal-time AI voice changer and soundboard for gaming and streaming
Delivers ultra-low latency real-time streaming speech generation via API, though less focused on consumer dubbing workflows.
Delivers ultra-low latency real-time streaming speech generation via API, though less focused on consumer dubbing workflows.
Free / Open-sourceFree online text-to-speech with hundreds of AI voices across more than 100 languages
Free / Open-sourceFree online text-to-speech with hundreds of AI voices across more than 100 languages
Offers exceptionally fast real-time transcription speeds and competitive enterprise pricing, but has slightly fewer audio intelligence summarization features.
Offers exceptionally fast real-time transcription speeds and competitive enterprise pricing, but has slightly fewer audio intelligence summarization features.
SpecialistSpecializes in orchestrating complete conversational voice agent pipelines rather than raw standalone transcription APIs.
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.
Online text-to-speech and embedding platform suited for podcasting and content creators, but less customizable for developers.
Online text-to-speech and embedding platform suited for podcasting and content creators, but less customizable for developers.
Provides robust multilingual transcription and audio intelligence APIs with a strong focus on developer-friendly infrastructure.
Provides robust multilingual transcription and audio intelligence APIs with a strong focus on developer-friendly infrastructure.
