AssemblyAI

assemblyai.com
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Redefine what’s possible with voice data—all on one seamless API

Description

Voice AI infrastructure for builders · With AssemblyAI · Everything you need to build with Voice AI. · We're not playing around, but you can · Unlock the power ofVoice AI

AssemblyAI is a cutting-edge Speech AI company that specializes in developing state-of-the-art AI models for transcribing and understanding human speech via an API. Thousands of developers build on AssemblyAI’s speech AI models everyday to run speech-to-text on multilingual speech, and harness the power of LLMs to extract the full value from that voice data – including answering questions from voice data, generating content, and extracting metadata in seconds. Audio intelligence features like summarization, PII redaction, speaker and topic detection, and auto chapters further unlock insights from audio data.

Features

Batch Speech-to-Text
Real-time Streaming Transcription
Multilingual Speech Recognition
Speech Understanding Models
Speaker Diarization
Automatic Text Formatting

Use cases

Conversational Intelligence, Voice Agents, Creator Tools, Medical, Transcription and Captioning

FAQ

AssemblyAI transforms audio processing through several key capabilities, including real-time transcription with adaptive noise filtering, multi-speaker detection and voice separation, semantic understanding and topic classification, sentiment analysis and emotion detection, custom vocabulary training for industry-specific terminology, and scalable API infrastructure for enterprise deployment.

AssemblyAI offers two different speech-to-text models: Slam-1, which supports English only, and Universal, which supports 99 languages.

AssemblyAI operates on a Pay-As-You-Go model. Pricing for pre-recorded audio is based on the duration of the audio file submitted and the speech model selected. A generous free plan is available for getting started.

Free accounts have default limits, such as up to 5 concurrent asynchronous transcription jobs. Paid plans can scale significantly, and AssemblyAI offers custom concurrency limits at no additional cost by contacting their support or sales teams.

This is listed as a popular FAQ topic, though specific file formats are available in the AssemblyAI documentation.

File size and duration limits are documented in the FAQ, with specifics available in their documentation portal.

The API can handle files containing spoken audio in multiple languages, with processing capabilities depending on the selected speech model.

To get started, you need to sign up for a free account on the AssemblyAI website and obtain your API key from the developer dashboard. The platform supports standard API key authentication for all integrations.

This is addressed in their Privacy & Security FAQ section, with details available in their documentation.

Content creators and media companies use AssemblyAI to automatically generate accurate transcripts and summaries of podcasts, interviews, and video content, with speaker diarization identifying who said what. Legal and compliance teams deploy AI agents to monitor recorded meetings and calls for specific keywords and regulatory risks.

Specs

Type Agent
SectionAI agents
Pricing has a free tier (от $0.01/mo)
Platform API only
Systems api, web
Who forIndividual
Site languageen
Rating4.82 (33 reviews)
Views520 351
Launched2024-11-01

Can do

agents api workflow-automation realtime summarization transcription sentiment-analysis no-code stt

Integrations

claude gemini zoom

Platforms

api web

Tags

speech to text audio transcription language detection real time transcription multilingual transcription

Social

Discord

Source code

repository

Found in sources

aiagentsdirectory aiagentslist futurepedia github-lists moge producthunt showmebest telegram vibecoderz

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