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Gladia vs Photon API

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

APIGladiaNEW—Photon APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gladia vs Photon API: common questions

Which is more reliable, Gladia or Photon API?

On our scheduled checks, Photon API leads on measured uptime — Gladia at —% versus Photon API at —% 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 Gladia and Photon API need an API key?

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

Can I call Gladia and Photon API from the browser?

Yes — both Gladia and Photon 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 Gladia and Photon API free for commercial use?

Gladia has unclear commercial terms, and Photon 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.