assemblyai.com

AssemblyAI

AI API for speech-to-text and audio intelligence

Type: Audio License: Commercial Price: $0 (First 5 Minutes Free Per Month) - $0.00025 Per Second After (Pay-As-You-Go) Category: Audio tools AimostAll Score: 98/100

AimostAll Score

98/ 100
Data coverage: 64% (medium confidence)
Last evaluated: 2026-09-04
Methodology: version 1
Developer100
Business100
Valuenot enough data
Trust96
Why this score?

Each check below is a fact we could verify from public sources. Unknown checks are excluded from the calculation instead of counting as a negative, and the score is pulled toward the midpoint when coverage is low — that is what data coverage reports.

Developer100/100 · 82% of checks known

  • YesPublic API source ↗Pre-recorded, realtime and sync Speech-to-Text APIs.
  • YesPublic API reference source ↗Public API reference and cookbooks.
  • YesDeveloper documentation source ↗Full developer documentation site.
  • YesOfficial SDKs / client libraries source ↗Official Python and JavaScript SDKs.
  • YesDocumented integrations source ↗Documented integrations including LiveKit and Pipecat.
  • YesSelf-hosting possible source ↗Self-Hosted Voice AI Cloud deployment option.

Not determined: Webhooks / automation hooks, Open-source core.

Business100/100 · 67% of checks known

  • YesPublic pricing source ↗Public pricing page for the production models.
  • YesBusiness / enterprise tier source ↗Enterprise section with customer stories and enterprise contact.
  • YesSSO available source ↗Single Sign-On documented under Account Management.
  • YesSecurity / compliance information source ↗Security page plus a Trust Center, data-retention and model-training controls.
  • YesDocumented support channels source ↗Support linked alongside the documentation.
  • YesCommercial plan exists source ↗Pay-as-you-go paid usage.

Not determined: Team collaboration, Admin / role management, Customer data export.

Valuenot published · 24% of checks known

  • YesTransparent pricing source ↗Public pricing page for the production models.
  • YesBrowser app source ↗Hosted Playground for trying the models.

Not determined: Free tier, Free trial, Concrete plan limits, No card required to start, Cancellation / refund policy, Mobile app, Desktop app.

Trust96/100 · 73% of checks known

  • YesTerms of service source ↗Terms of Service published.
  • YesOfficial documentation source ↗Getting started, model guides and use-case guides.
  • YesPublic pricing source ↗Public pricing page for the production models.
  • YesPublished contact channel source ↗'Contact us' in the main nav.
  • YesChangelog / release notes source ↗Changelog linked in the developer resources.
  • YesStatus page source ↗Status page linked in the developer resources.
  • YesWebsite reachable source ↗Homepage probe during evidence gathering.

Not determined: Privacy policy, Identifiable vendor.

Scores are calculated by AimostAll with fixed, public rules (methodology v1). AI assists only with factual research; it never picks the number. Placement and scores cannot be bought.

What is AssemblyAI?

AssemblyAI provides a cloud API for automatic speech recognition (ASR) and audio content analysis. Developers can send audio or video files and get back transcriptions, along with insights like detected topics, summaries, or content moderation flags. It supports real-time transcription as well. AssemblyAI’s models are known for high accuracy and are trained on a diverse range of accents and acoustic scenarios. While it's primarily a developer service (no end-user app), its technology powers many transcription tools and AI note-taking apps. Pricing is pay-as-you-go per minute of audio with a free tier for testing.

Listing trust signals

Listing ID

125

Directory refresh date

2026-11-02

Pricing confidence

High confidence based on currently stored pricing metadata.

Pricing, category and fit

AssemblyAI is listed as a Audio tool on AimostAll.

License model: Commercial. Pricing label: $0 (First 5 Minutes Free Per Month) - $0.00025 Per Second After (Pay-As-You-Go).

Use this page to compare AssemblyAI with other audio tools, watch tutorials, and explore similar alternatives.

Video Tutorials

Latest YouTube tutorials matched to this tool (updates twice per day).

Frequently asked questions about AssemblyAI

What does AssemblyAI do?

AI API for speech-to-text and audio intelligence.

Is AssemblyAI free or paid?

AssemblyAI is listed on AimostAll as commercial with a pricing label of $0 (First 5 Minutes Free Per Month) - $0.00025 Per Second After (Pay-As-You-Go).

Where can I compare alternatives to AssemblyAI?

Use the alternatives section below or browse the wider audio category to compare similar tools.