100,000 credits
One-time top-up for model calls and AI study tools.
Sign in to see your balance and top up.
Credits cover AI calls, document processing, image generation, transcription, and other platform services. Payment via Stripe Checkout.
One-time top-up for model calls and AI study tools.
Better-value credit pack for regular study sessions.
High-volume credit pack for heavy AI usage.
Within 14 days, you may request a refund for the remaining refundable stored-value portion after payment-provider fees. Plan fees and promotional or bonus credits are non-refundable.
Usage draws down current plan credits, then rollover plan credits, stored-value credits, signup gift credits, then bonus credits — requests stop once credits run out.
Stripe Checkout shows eligible methods — card, Link, PayPal, Alipay, or WeChat Pay — based on your account, region, currency, and risk review.
Continuing means you agree to the refund and credit-spend rules above.
The success page never grants credits itself — the server does, after verifying Stripe's signature and idempotency, so a refresh or webhook retry can't double-charge you.