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Cerebras Inference API vs Registrum API

Same instrument, two spec sheets — measured, not claimed.

APICerebras Inference APIHEALTHY94Registrum APIHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms321246
P95 · ms7031553
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Cerebras Inference API vs Registrum API: common questions

Which is more reliable, Cerebras Inference API or Registrum API?

Both are neck-and-neck — Cerebras Inference API and Registrum API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Cerebras Inference API or Registrum API?

Registrum API has the lower median latency in our checks — Cerebras Inference API responds in 321 ms versus Registrum API at 246 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Cerebras Inference API and Registrum API need an API key?

Both ask you to authenticate — Cerebras Inference API uses an API key and Registrum API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Cerebras Inference API and Registrum API from the browser?

Only Cerebras Inference API is browser-friendly — it returns CORS headers over HTTPS. Registrum API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Cerebras Inference API and Registrum API free for commercial use?

Cerebras Inference API has unclear commercial terms, and Registrum API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.