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Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing

PTE practice tests with instant AI scoring and realistic mock exams

AI detector that highlights evidence, not just a score

Transcribe, analyze, and score every conversation against your own methodology

Photograph a Scrabble board, get the best move

AI-coached CASPer practice questions and full mock tests

The simulation platform for agent self-improvement

Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms

Expert-reviewed digital SAT prep with adaptive tests and a curated question bank

AI dash cameras and fleet safety intelligence that coach drivers in the moment

AI-powered practice and scoring for the Duolingo English Test

Ace the Duolingo English Test with AI scoring and 18,000+ practice questions

AI IELTS Writing Task 2 evaluation and improvement

AI transcription and meeting notes in 150+ languages

Google DeepMind's #1 frontier AI model (Gemini Carbon 4) for long-horizon agentic coding, cybersecurity defense, and 1M-token multimodal reasoning.

AI detector, plagiarism and content-quality checks in one scan

Turn audio, recordings, and YouTube into sheet music, MIDI, and tabs

Real-time ESG scores and sentiment from AI analysis of unstructured news and disclosures

Job-simulation skill assessments for the AI hiring era

AI language and skills assessments for hiring and education

Multilingual grammar, spelling and readability API

Plagiarism and AI detection with source-linked originality reports

Free AI form builder for humans and AI agents

The TypeScript framework for building, deploying, and observing AI agents