The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.
IEEE

Empowering Dysarthric Communication: Hybrid Transformer-CTC-Based Speech Recognition System

Abstract: Dysarthria, a motor speech disorder, impairs the muscles involved in speech production, leading to challenges in articulation, pronunciation, and overall communication. This results in slow, ...
Analytics Insight

Best Voice AI Frameworks to Use in 2026

Overview Leading voice AI frameworks power realistic, fast, and scalable conversational agents across enterprise, consumer, ...
GitHub

song-recognition

AudioFingerprint is a production-ready, local audio fingerprinting and song identification system inspired by Shazam and Google Sound Search. It uses spectral peak extraction and combinatorial hashing ...
IEEE

Sagalee: an Open Source Automatic Speech Recognition Dataset for Oromo Language

Abstract: We present a novel Automatic Speech Recognition (ASR) dataset for the Oromo language, a widely spoken language in Ethiopia and neighboring regions. The dataset was collected through a ...
GitHub

Professional machine learning application for detecting hate speech in text using Python NLP techniques.

Hate-Speech-Detection/ ├── src/ │ ├── main.py # Desktop application entry │ ├── web_app.py # Flask web interface │ ├── api.py # FastAPI REST endpoints │ ├── model.py # ML models │ ├── database.py # ...