Transparent prepaid pricing
We charge $0.15 per 1M input tokens and $0.50 per 1M output tokens. Your prepaid balance covers real usage, so you never pay for errors or idle time.
Cost calculator
Worked examples
Context window fill
You send 90,000 input tokens and receive 10,000 output tokens. Cost = (90,000/1,000,000 × 0.15) + (10,000/1,000,000 × 0.50) = $0.0135 + $0.005 = $0.0185.
Short chat response
You send 1,000 input tokens and receive 2,000 output tokens. Cost = (1,000/1,000,000 × 0.15) + (2,000/1,000,000 × 0.50) = $0.00015 + $0.001 = $0.00115.
Bulk document analysis
You send 500,000 input tokens and receive 50,000 output tokens. Cost = (500,000/1,000,000 × 0.15) + (50,000/1,000,000 × 0.50) = $0.075 + $0.025 = $0.10.
How prepaid credit works
We charge $0.15 per 1M input tokens and $0.50 per 1M output tokens. You top up with crypto and spend only what you use. Errors and refusals cost nothing. Your balance never expires.
Set your budget. Use our calculator to estimate costs. No hidden fees. No subscription surprises.
Free trial credit details
New accounts get $0.50 of trial credit valid for 7 days. Sign up with Google or email. This credit covers about 3,333 input tokens or 1,000 output tokens. Use it to test our uncensored model.
Refund and error policy
Credit is not refunded because it never expires. If you are double-charged, contact Support. Errors in token counting are fixed. We do not offer pro-rata refunds for unused balance. Your prepaid credit is yours forever.
Frequently asked questions
What is the kimi API price?
We charge $0.15 per 1M input tokens and $0.50 per 1M output tokens. You pay only for tokens used. Errors are free.
How do I top up?
Use USDT (TRC20) or USDC (Base). Top up any whole amount from $20 to $500. You get bonus credit for larger amounts.
Does my credit expire?
No. Your prepaid credit never expires. Trial credit expires in 7 days. You can top up anytime.
Which payment methods do you accept?
Crypto only: USDT on TRC20 or USDC on Base, any whole amount from $20 to $500. Bonus credit applies from $50.
Get your API key in one step
Register, retrieve your key, and update your base URL. That is the complete configuration.
Try with trial credit