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Newton vs OpenAI API

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

APINewtonHEALTHY96OpenAI APIDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms293—
P95 · ms1336—
AuthnoneapiKey
CORSyesno
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

Newton vs OpenAI API: common questions

Which is more reliable, Newton or OpenAI API?

On our scheduled checks, Newton leads on measured uptime — Newton at 100% 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 Newton and OpenAI API need an API key?

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

Can I call Newton and OpenAI API from the browser?

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

Are Newton and OpenAI API free for commercial use?

Newton 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.