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Noctua vs OpenAI API

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

APINoctuaHEALTHY88OpenAI APIDEAD0
Uptime · 30d
Uptime · 90d97.2%0.0%
Uptime · 30d91.4%0.0%
P50 · ms517—
P95 · ms1635—
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedRetry-After: 109s
In directory since2026-07-052026-07-05
operationalpartialdownno data

Noctua vs OpenAI API: common questions

Which is more reliable, Noctua or OpenAI API?

On our scheduled checks, Noctua leads on measured uptime — Noctua at 97.2% versus OpenAI API at 0.0% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Noctua and OpenAI API need an API key?

Noctua needs no key, while OpenAI API requires a free API key. If you want to start calling without signup, reach for Noctua first.

Can I call Noctua and OpenAI API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Noctua and OpenAI API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Noctua and OpenAI API free for commercial use?

Noctua has unclear commercial terms, and OpenAI 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.