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Flatkey charges per token at 60–90% of official model list pricing. On top of the per-model discount, every balance top-up earns bonus credit — stack the $200 top-up bonus with model discounts and effective costs drop to as low as 50% of official pricing. There are no subscriptions, no monthly fees, and no per-seat charges.

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Top-up plans

$10 Top-Up

Pay 10→Get10 → Get 13+$3 bonus credit (23% effective saving). Good for testing and exploration.

$20 Top-Up

Pay 20→Get20 → Get 28+$8 bonus credit (40% effective saving). Good for dev workloads.

$200 Top-Up

Pay 200→Get200 → Get 300+$100 bonus credit (50% effective saving). Best value for production use.

Enterprise

Custom pricingInvoice billing, custom routing discounts, procurement support. Contact sales.

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How discounts stack

Flatkey pricing works in two layers:
  1. Model discount: Every model is listed at 60–90% of the official vendor price.
  2. Top-up bonus: Every 200top−upgivesyou200 top-up gives you 100 extra — effectively reducing costs by another 33%.
Combined, the effective cost per token can be as low as 50% of official pricing.

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Example: gpt-4o-mini

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Pricing FAQ

No. Flatkey self-serve plans are all prepaid top-ups. You pay only for what you use. There are no recurring charges.
No. Bonus credit and paid credit both remain in your balance indefinitely. There is no expiry date.
Yes. Bonus credit spends exactly like paid credit. It can be used for any model on any endpoint — chat, embeddings, image generation, etc.
Cost = (input tokens × input price) + (output tokens × output price). Prices are per million tokens. The exact cost is deducted after the request completes. You can see per-request costs in the Usage dashboard.
API requests return a 401 Insufficient Balance error. Top up your balance to resume. There are no automatic charges or overdraft.
Choose Enterprise for larger monthly usage, invoice-based billing, procurement requirements, custom routing discounts, or team-level access controls.

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Viewing per-model prices

See current prices for all models in the Model Directory or at flatkey.ai/models. Prices are updated as vendors change their rates.