AssemblyAI
The best way to build Voice AI apps with one robust API
Cortex
Let your AI search all your workspace apps, at once
Updated February 2026
| AssemblyAI | Cortex | |
|---|---|---|
| Rating | 4.8★ | 5.0★ |
| Reviews | 25 | 41 |
| Pros | 14 | 10 |
| FactScore™ | 67.5 | 81.2 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in AssemblyAI — Pros
Accurate transcription Transcription API Easy integration Sentiment analysis Excellent documentation Content moderation Multilingual support Real-time transcription Speaker diarization Auto chapters Developer experience Rich audio features Scalable APIsBoth tools — Pros
Fast performanceOnly in Cortex — Pros
Productivity boost Cross-app search AI integration Universal search Reliable search Good UI Context aware Easy setup Meeting integrationsOnly in AssemblyAI — Cons
Autopay issues No card removal option Occasional transcription errorsBoth tools — Cons
—Only in Cortex — Cons
Interface improvements needed Limited app supportDetails
| AssemblyAI | Cortex | |
|---|---|---|
| Categories | AI Infrastructure Tools, Transcription | Search, AI Infrastructure Tools |
| Platforms | Web | Web |
| Became Popular | August 4, 2017 | January 24, 2024 |
| Website | assemblyai.com | www.usecortex.ai |
Who Should Pick Which?
Choose AssemblyAI if...
- Accurate transcription
- Transcription API
- Easy integration
Choose Cortex if...
- Productivity boost
- Cross-app search
- AI integration
With a FactScore™ of 67.5 vs 81.2, Cortex leads in community reception. AssemblyAI uniquely offers Accurate transcription and Transcription API, while Cortex stands out for Productivity boost and Cross-app search.
What Users Say
AssemblyAI
When selecting a speech-to-text & audio intelligence provider for NeuraVid.io, we compared several options, including Deepgram, Rev AI, AWS Transcribe, and Whisper-based APIs. We ultimately chose A...
What sets AssemblyAI apart is its simplicity and seamless integration for transforming speech into meaningful text. Their API is easy to implement, providing highly accurate and fast transcription ...
What sets AssemblyAI apart is its simplicity and seamless integration for transforming speech into meaningful text. Their API is easy to implement, providing highly accurate and fast transcription ...
Cortex
We are all victims of modern technology where we have so many different tools available to us, and while we think we're pretty good at storing information and filing it appropriately, we struggle t...
This is an amazing search tool that has enhanced my productivity since minute 1. This tool has fundamentally changed the way I interact with the multitude of apps and data that my daily work involv...
Looks amazing! Will definitely look deeper into it. If it holds up to what it promises, it can really be a game-changer: upping my productivity while preventing me from going crazy over missing files!
Related Comparisons
Frequently Asked Questions
Which is better, AssemblyAI or Cortex?
Based on FactScore™, Cortex leads with a score of 81.2 vs 67.5. Cortex has a higher rating of 5.0★ compared to 4.8★.
What are the pros of AssemblyAI compared to Cortex?
AssemblyAI uniquely offers: Accurate transcription, Transcription API, Easy integration, Sentiment analysis, Excellent documentation.
What are the pros of Cortex compared to AssemblyAI?
Cortex uniquely offers: Productivity boost, Cross-app search, AI integration, Universal search, Reliable search.
Is AssemblyAI better rated than Cortex?
AssemblyAI is rated 4.8★ from 25 reviews. Cortex is rated 5.0★ from 41 reviews.
What is the FactScore™ of AssemblyAI and Cortex?
FactScore™ weighs rating and review volume together. AssemblyAI scores 67.5 and Cortex scores 81.2.
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