AA

AssemblyAI

online

Production-grade ASR + LLMs. $50 free credits.

Speech
91
/ 100 APIVault Score

// At a glance

Free Tier
$50 credits · no card
Category
Speech
Credit Card
Not required
Last Verified
2m ago

// Free tier details

Available Models

Universal-2Nano

Monthly Requests

$50 free credits

No credit card needed
No phone verification

// Quick start

300">"text-purple-400">import assemblyai 300">"text-purple-400">as aai

aai.settings.api_key = 300">"YOUR_ASSEMBLYAI_KEY"
transcriber = aai.Transcriber()
transcript = transcriber.transcribe(300">"https://example.com/audio.mp3")

print(transcript.text)

// Overview

Universal-2 model handles noisy audio and multi-speaker scenarios. Includes LLM-powered summarization and sentiment analysis.

// Pros

  • Strong diarization
  • Includes LLM summarization
  • Clean API

// Cons

  • More expensive than Deepgram
  • No TTS

// Score breakdown

Reliability (35%) (from 2m ago health check)100/100
Free Tier Generosity (30%) (computed from quota, no-CC, no-phone fields)85/100
Documentation (20%) (human rating)90/100
Popularity (15%) (GitHub stars (log-normalised), or manual baseline)84/100

Methodology: apivault.dev/methodology

// Best for

Meeting transcriptionCall centersPodcast search