Frequently Asked Questions

AI Conversation lets you chat with an AI partner in your target language. Choose a scenario (restaurant, travel, interview) or free chat. The AI responds naturally, corrects mistakes, and suggests better phrases. All users benefit from our SubLearn Core AI for natural, context-aware conversations.

Scene Explainer uses AI to analyze video scenes and provide cultural context, idiom explanations, and grammar breakdowns. Hover over any subtitle and click Explain Scene to get insights. Great for understanding cultural nuances, slang, and complex phrases that literal translations miss.

Phrase Hunter helps you find videos containing specific phrases or grammar patterns. Search for a phrase (e.g., "how much does it cost"), and AI finds videos with that phrase or similar expressions. Perfect for learning phrase usage in real contexts. Pro users get priority search and unlimited queries.

AI features consume Credits from your quota. Free: 3/day (refills every 24h), Plus: 300/month, Pro: 1,500/month. Conversation messages, scene explanations, and roleplay sessions each use 1 Credit. Track usage on your dashboard. Plus/Pro users can also see AI usage analytics.

All users are powered by SubLearn Core AI, our proprietary language learning engine that provides natural conversations, excellent cultural context, and accurate grammar explanations. Pro subscribers also get access to Advanced Deep-Reasoning AI — 50 premium prompts per month with flawless native logic for the most complex language questions.

Smart Condensed mode uses AI to create shorter versions of videos by removing filler words, long pauses, and repetitive content while keeping key learning points. Watch full content in 60-70% of the time. Enable from video player settings. Uses 1 AI action per video. Great for review sessions.

Our AI provides context-aware translations and explanations with 95%+ accuracy for common phrases. However, AI can occasionally misinterpret idioms or cultural nuances. We recommend cross-referencing critical translations. You can rate AI responses (thumbs up/down) to help improve accuracy.

AI features support 30+ languages including Spanish, French, German, Italian, Portuguese, Russian, Japanese, Korean, Chinese (Simplified/Traditional), Arabic, Hindi, and more. Conversation quality varies by language—major European and East Asian languages have the best AI models. Check Supported Languages page for full list.

After each AI response (conversation, explanation, etc.), use the thumbs up/down buttons to rate accuracy. For incorrect responses, click Report Issue to send detailed feedback. Your reports help train better AI models. Pro users get priority feedback review and direct access to AI improvement suggestions.