Plans and top-up packages
Start with prepaid balance, route across top models, and scale usage without buying fixed monthly bundles.
No contract required. Add balance, create a key, copy the base_url, and test your first request.
Lowest entry to get started
Prepaid balance, no surprise bill
One API key for everything
Zero vendor lock-in
Usage analytics & cost control
Best first top-up for trying real API workloads with a clear discount.
3X more usage than the official plan
Permanently 20-40% cheaper
Usage analytics and cost controls
Enterprise-grade privacy
One invoice across providers
Best value for production testing, team workflows, and sustained model traffic.
40X more usage than the official plan
Highest prepaid value
Usage analytics and cost controls
Enterprise-grade privacy
One invoice across providers
For higher monthly usage, invoicing, team procurement, or custom routing discounts.
Custom usage, routing, and invoicing
Custom monthly usage
Team procurement support
Custom routing discounts
One invoice across providers
$20 reaches 3X official Plus-style usable workload because every dollar becomes metered token balance: no seat overhead, lower routed unit cost, and no forced bundle waste.
Official Plus
Fixed seat, fixed bundle
$20 Flatkey top-up
Metered API balance
Built for real API workloads
more runs than a fixed Plus seat
One balance across top models
GPT, Claude, Gemini, DeepSeek, image, and video
40% lower effective cost
more usage before your next top-up
Flatkey turns the top-up into metered API balance. You avoid seat overhead, route through lower unit costs, and do not waste unused fixed-bundle capacity.
No. The self-serve plans are prepaid top-ups. Balance is consumed only when API requests use models.
One balance can route across GPT, Claude, Gemini, DeepSeek, image, audio, and video models through one OpenAI-compatible gateway.
Yes. Usage is metered by model, token type, and request logs so teams can review spend and control cost.
Choose Enterprise for larger monthly usage, invoicing, procurement, custom routing discounts, or team-level controls.