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Lemonfox.ai API vs OpenAI API

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

APILemonfox.ai APIDEAD0OpenAI APIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedRetry-After: 109s
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lemonfox.ai API vs OpenAI API: common questions

Which is more reliable, Lemonfox.ai API or OpenAI API?

Both are neck-and-neck — Lemonfox.ai API and OpenAI API each measure 0.0% 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.

Do Lemonfox.ai API and OpenAI API need an API key?

Both ask you to authenticate — Lemonfox.ai API uses an API key and OpenAI 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 Lemonfox.ai API and OpenAI API from the browser?

Yes — both Lemonfox.ai API and OpenAI API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Lemonfox.ai API and OpenAI API free for commercial use?

Lemonfox.ai API 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.