FAIR USE & OPERATING LIMITS

Clear credits.
Reliable access.

Credits cover model usage. Per-minute, concurrent-request, availability, and safety limits help keep the service reliable.

When a request cannot run.

Each response explains whether to retry, reduce parallel requests, choose another available model, add credits, or contact support.

CREDITS

Hard stop at $0

A request is rejected before it can create unfunded spending. Add credits and retry.

REQUEST LIMITS

RPM + concurrency

Rate and parallel-request limits protect shared capacity. Honor Retry-After and use bounded backoff.

MODEL IDENTITY

No silent substitution

If Newton’s cannot confirm the requested model, it returns an error instead of using another model.

Not permitted.

Credential resale, account sharing designed to bypass controls, hostile traffic, compromised keys, safeguard evasion, and fraudulent payment activity can restrict or close access.

Keep keys scoped and private.

Use environment variables or a secret manager, rotate compromised credentials immediately, and use separate API keys for separate workloads when available. Purchased access does not grant permission to resell provider capacity or evade provider safety rules.