Getting started

How relay APIs differ from official APIs

Relays bill by multiplier, and the saving usually costs you stability and data boundaries.

Point by point

Billing model
Official APIs bill per token; relays combine a top-up coefficient with model multipliers.
Stability
Relay availability depends on upstream quota and can throttle or stop without notice.
Data boundary
Requests pass through a third party, so sensitive data should not use a relay.
Balance ownership
Top-up balances are usually non-refundable and lost if the site shuts down.

Takeaway

Treat relays as a cost optimisation, not a home for critical or sensitive workloads.