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Cheapest AI assistants in the US

Gemini Google AI Plus is the cheapest at $4.99/mo. Verified Sep 2026.

How we pick

Each service's cheapest monthly plan that anyone in the US can buy, from its pricing page on the verified date. Student plans, plans with eligibility rules, add-ons that need another subscription and bundles are left out. Methodology →

Cheapest plan per service, cheapest first

Cheapest plan per service, cheapest first
  1. Gemini · Google AI Plus$4.99/mo
  2. ChatGPT · Go$8/mo
  3. Claude · Pro$20/mo
  4. Perplexity · Pro$20/mo

Side by side

Free and paid plans

Tap a row for the service's full price history.
ServiceFree planCheapest paid planVerified
GeminiFree$4.99/moGoogle AI Plus
ChatGPTFree$8/moGo
ClaudeFree$20/moPro
PerplexityFree$20/moPro

Recent increases

The latest price increases

The newest records of these plans going up.
+$5.01/moPay, got worse2 sources · Verified
See all changes →

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