Tokens, Rate Limits & Balance Top-up

ModelMart uses a simple pay-as-you-go pricing model based on token usage.

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1. Token Calculation

• Prompt Tokens (Input): Processed prompt tokens including system instructions and chat history.
• Completion Tokens (Output): Generated response tokens.
• Cached Prompt Tokens: Reused prompt segments receive up to 75%–90% discounts via Context Caching.

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2. Balance Top-up

• Payment Methods: Automated 24/7 Bank Transfer (VietQR with instant credit), Visa/Mastercard, MoMo.
• Minimum Top-up: 50,000 VND (~$2 USD).
• Balance Expiration: Credits never expire.

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3. Rate Limit Headers

• x-ratelimit-limit-requests: Maximum RPM allocated.
• x-ratelimit-remaining-requests: Remaining calls within current minute.
• x-ratelimit-reset-requests: Seconds remaining until limit resets.