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Character.AI vs Z.ai

Character.AI edges Z.ai on our editorial score (4.4 vs 4.1), but Character.AI is the better fit if you want live voice calls and long-term memory and image sharing and custom characters; Z.ai has no clear edge there.

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Character.AIZ.ai
Editor score4.4 / 54.1 / 5
Price$7.92/moFree
Price bandUnder $10/moFree
Free tierYesYes
Price detailc.ai+ $9.99/mo or $94.99/yr (~$7.92/mo). Free chat is unlimited but carries ads, a daily swipe cap and a Charms currency. A cheaper (c.ai) lite tier exists but its price varies by region.Web chat is free (checked 2026-09-30); GLM Coding and API plans are priced separately for developers.
Adult contentNo adult modeNo adult mode
VoiceLive callsNo
ImagesYesNo
VideoNoNo
MemoryYesNo
Custom charactersYesNo
Companion typesAny characterAny character
PlatformsWeb, iOS, AndroidWeb
Runs locallyNoNo

Character.AI — our take

The default starting point: unmatched variety and the most generous free tier in the category.

  • 20M+ community characters
  • Unlimited free text chat
  • Best-in-class prose quality

Z.ai — our take

A capable free general assistant — the closest free peer to DeepSeek for everyday chat.

  • Free frontier-model chat
  • Fast responses
  • No account friction to try

Character.AI vs Z.ai — common questions

Which is cheaper, Character.AI or Z.ai?

Z.ai is the cheaper of the two at Free, against $7.92/mo for Character.AI.

Which one has a free tier?

Both do — you can try either without paying.

Which remembers conversations better?

Character.AI retains context across sessions; Z.ai keeps context only within a session.

Which handles adult content differently?

Character.AI: No adult mode. Z.ai: No adult mode. This directory is SFW — we record whether a mature mode exists so you know before signing up, and we describe no explicit material.

Prices change. Confirm the current price and available plans on each site before subscribing. Affiliate disclosure.