What is active recall and how does Opal use it?

Active recall is a study method where you actively try to remember information instead of just re-reading it. Opal applies this by generating practice assessments from your notes to improve test scores and retention.

What types of files can I upload to Opal?

Opal supports a variety of formats including PDF, TXT, MP3, and WAV files, as well as YouTube video URLs for analysis.

Which AI models does Opal use?

Opal currently runs on OpenAI's GPT-3.5 and GPT-4 large language models to analyze your study materials.

Is my data secure on Opal?

Yes, Opal uses bank-level security. Files are analyzed via OpenAI's secure API, and generated information is stored on private servers inaccessible to others.

Can I use Opal for non-English documents?

Yes, Opal offers multilingual support for documents in languages such as Spanish, German, French, and Chinese.

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Learning

Freemium

Opal

AI-powered study tool for faster learning and better recall. Upload documents, videos, or audio to generate notes and practice assessments using active recall techniques.

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Rating

Reviews

Upvotes

3 months ago

Listed

Learning

Education

Study Tool

Active Recall

Summarizer

Quiz Generator

Note Taking

Academic Research

Productivity

Tool information

Provider

Landon Harter

Platforms

Web

Mobile

Languages

English

Spanish

German

French

Chinese

Added to directory

3 months ago

Last updated

about 2 months ago

Rating

Not available

Pricing

Freemium

About Opal

What the tool does and who it's for

Opal is an AI-powered study platform designed to enhance learning efficiency and information retention. By leveraging large language models like GPT-4, Opal allows students to upload diverse content formats—including PDFs, text files, audio recordings, and YouTube videos—to automatically generate structured study materials. The platform emphasizes active recall through the creation of practice assessments and summaries, helping users navigate complex documents with semantic search. It also features usage tracking and multilingual support, making it a comprehensive assistant for managing academic assignments and long-term knowledge building.

Key capabilities

Multi-format Uploads: Supports .pdf, .txt, .mp3, .wav, and YouTube video links.

Active Recall Generation: Automatically creates practice assessments to boost long-term memory.

Semantic Search: Navigate through uploaded documents and folders using natural language queries.

AI-Powered Analysis: Utilizes GPT-3.5 and GPT-4 to analyze and summarize complex content.

Usage Tracking: Monitor document statistics and study progress over monthly and all-time periods.

Organizational Folders: Categorize study materials by class, assignment, or custom topics.

Multilingual Support: Import and study documents in multiple global languages.

Secure Storage: Documents are protected with bank-level security and not shared with third parties.

Pricing

Freemium — plans below

Free

Basic document uploads
Standard AI analysis
Limited monthly usage

Subscription

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