Read stories.
Build real fluency.
Import from YouTube, ebooks, or the shared library. Read with AI-powered word analysis, build vocabulary across six familiarity levels, and test your knowledge with smart quizzes.
- Powerful word analysis
- Read-aloud for every sentence
- AI definitions, grammar & quizzes
Start free, on your terms
Create an account to import stories, track vocabulary across six familiarity levels, and sync your progress everywhere you read.
Everything you need
to read with confidence
Sora Reader combines reading immersion with just enough study tooling to make every session effective.
Every word, one tap away
Sudachi-powered morphological analysis makes every word in a story immediately inspectable. Tap for readings, dictionary forms, and contextual definitions.
AI comprehension on demand
Contextual definitions, full sentence translations, grammar breakdowns, and auto-generated quizzes — all powered by AI tuned to the exact sentence you are reading.
Vocabulary that grows with you
Words progress through six stages — New to Mastered — across every story you read. Mark a word Known once, and it is Known everywhere.
A curated shared library
Browse graded stories ready to import. One click creates a fully tokenized copy in your personal library.
Listen while you read
Upload narration audio or let neural TTS synthesize each sentence. Build playlists and listen hands-free on the go.
Progress you can see
Reading speed, words read, comprehensibility scores, daily goals, streaks, and achievements — every session moves the needle.
From import to mastery
Import, read, and build vocabulary — Sora Reader guides you at each step.
Import a story
Browse the shared library, paste a YouTube URL, or upload text or ebooks. The pipeline tokenizes and processes it for you.
Read with assistance
Tap words for definitions, translate sentences, and use grammar breakdowns whenever you get stuck.
Track your progress
Vocabulary knowledge syncs across all stories. Watch comprehensibility rise as your reading fluency grows.
Ready to start reading?
Create a free account to get started, or sign in to continue with your library and vocabulary progress.