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Gladia vs Sofiaplan

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

APIGladiaHEALTHY76SofiaplanHEALTHY80
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms12031666
P95 · ms41213475
AuthapiKeynone
CORSyesno
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 Sofiaplan: common questions

Which is more reliable, Gladia or Sofiaplan?

Both are neck-and-neck — Gladia and Sofiaplan each measure 100% 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.

Which is faster, Gladia or Sofiaplan?

Gladia has the lower median latency in our checks — Gladia responds in 1203 ms versus Sofiaplan at 1666 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Gladia and Sofiaplan need an API key?

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

Can I call Gladia and Sofiaplan from the browser?

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

Are Gladia and Sofiaplan free for commercial use?

Gladia has unclear commercial terms, and Sofiaplan 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.