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xAI Grok API vs Zhipu AI API

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

APIxAI Grok APINEW—Zhipu AI APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

xAI Grok API vs Zhipu AI API: common questions

Which is more reliable, xAI Grok API or Zhipu AI API?

On our scheduled checks, Zhipu AI API leads on measured uptime — xAI Grok API at —% versus Zhipu AI 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 xAI Grok API and Zhipu AI API need an API key?

Both ask you to authenticate — xAI Grok API uses an API key and Zhipu AI 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 xAI Grok API and Zhipu AI API from the browser?

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

Are xAI Grok API and Zhipu AI API free for commercial use?

xAI Grok API has unclear commercial terms, and Zhipu AI 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.