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ElevenLabs API Documentation vs OpenAI API

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

APIElevenLabs API DocumentationHEALTHY99OpenAI APIDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms131—
P95 · ms559—
AuthapiKeyapiKey
CORSyesno
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

ElevenLabs API Documentation vs OpenAI API: common questions

Which is more reliable, ElevenLabs API Documentation or OpenAI API?

On our scheduled checks, ElevenLabs API Documentation leads on measured uptime — ElevenLabs API Documentation 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 ElevenLabs API Documentation and OpenAI API need an API key?

Both ask you to authenticate — ElevenLabs API Documentation 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 ElevenLabs API Documentation and OpenAI API from the browser?

Only ElevenLabs API Documentation 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 ElevenLabs API Documentation and OpenAI API free for commercial use?

ElevenLabs API Documentation 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.