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AI girlfriend sites side by side · Both tested first-hand · Data through September 2026

ChatFAI logovsCaveduck logo

ChatFAI vs Caveduck

I bought a membership on both and tested each for a month. What they offer, their measured numbers and what their users say, next to each other, with my verdict on each at the end.

The scoreboard

Caveduck leads on 3 of the 4 figures that decide most choices.

ChatFAI logoCaveduck logo
Rank on this site#54▲#25
Google US, “ai girlfriend”––
Search visits a month84.9K▲100K
Name searches a month, US3.6K▲18.1K

In short

Two sites of similar size; here is what separates them.

  • Caveduck gets about 100,008 search visits a month worldwide against 84,932 for ChatFAI (DataForSEO, September 2026).
  • People search for Caveduck by name about 18,100 times a month in the US, against 3,600 for ChatFAI.
  • ChatFAI has a free tier and paid plans from Free; Caveduck has no free tier and starts at $5.99/mo.

What they offer

What they offer
What they offerChatFAICaveduck
Free tier▲YesNo
Entry paid planFree$5.99/mo
Adult contentAllowed on paid plansAllowed on paid plans
Features
  • Fictional character AI conversations
  • Celebrity and historical persona chat
  • Original AI companion personas
  • Creative roleplay scenarios
  • Free tier with character access
  • Extensive anime character library
  • SFW and NSFW roleplay modes
  • Anime archetype support (tsundere, kuudere, etc.)
Best forUsers interested in creative character exploration beyond standard AI girlfriend formatsAnime fans wanting extensive character variety and NSFW roleplay capability at a budget price
Not forUsers primarily wanting a dedicated romantic companion, voice, image generation, or mobile accessUsers wanting realistic character aesthetics, voice interaction, or a mobile app
OperatorChatfai LLC (named on the Google Play listing; the site itself does not say)WarpSpace (Warp Space Global Inc.), CEO Kim Young-bin
Pricing notesFree tier available (roughly 500 messages/month across 4 characters). Paid plans start around $9.99/month, with a discounted annual plan averaging under $7/month, plus optional one-time message-credit top-ups. Browser-based access.Free tier available. Paid from $5.99/month for full access.

My take

If you want to try before you pay, ChatFAI lets you: Caveduck asks for a card first. A free tier is a sampler, not a plan, but it tells you whether the chat suits you before money moves.

The numbers

The numbers
The numbersChatFAICaveduck
Rank on this siteOn the combined data gathered for every site#54▲#25
Google US rank, “ai girlfriend”DataForSEO ranked keywords, September 2026––
Tranco rank, all domainsAll-traffic rank among the top million domains#1,443,913▲#56,089
Chrome UX tierGoogle Chrome UX Report–Top 50,000
Search visits a month, worldwideDataForSEO estimate84,932▲100,008
Search visits a month, US▲20,00711,543
Brand searches a month, USGoogle Ads data via DataForSEO3,600▲18,100
Domain RatingDomain Rating by Ahrefs, out of 100▲4943
Referring domains2,111▲2,477
Backlinks10,632▲30,755
Domain registeredDecember 2022April 2023
Public record I read9 videos, 2 Reddit threads, 1 articles2 videos, 8 Reddit threads, 0 articles

The better value in each row is marked in green. Search visits and brand searches are DataForSEO estimates; Tranco and Chrome UX tiers are ranks, not visit counts.

My take

None of these ranks in the tracked positions for "ai girlfriend", so their places on this site come from all-traffic rank, and their visitors arrive by name, by ads or from app stores rather than from the category search. On size, Caveduck is the busier site: 100,008 search visits a month worldwide, about the same as ChatFAI gets (84,932). These are estimates of visits from Google only, so a site with apps or ads can be bigger than this shows. Brand searches are the loyalty line: 18,100 people a month type Caveduck's name, against 3,600 for ChatFAI. A name people type on purpose is a site they come back to; a site with lots of visits and few brand searches is living on rankings it could lose. ChatFAI is the older domain (2022 against 2023), which counts for something in a category where sites close without notice.

What users say, and what I found

Feature by feature
Feature by featureChatFAICaveduck
Chat and roleplayUsers mixedMy test: AgreeUsers positiveMy test: Agree
MemoryUsers negativeMy test: DisagreeUsers mixedMy test: Partly disagree
Characters and customisationUsers positiveMy test: Agree–
Group chatsUsers mixedMy test: Partly disagree–
Image generationUsers negativeMy test: AgreeUsers mixedMy test: Agree
Voice messagesUsers negativeMy test: Agree–
Free tierUsers negativeMy test: AgreeUsers mixedMy test: Disagree
Price and message creditsUsers mixedMy test: Partly disagree–
Privacy and billingUsers mixedMy test: AgreeUsers mixedMy test: Agree
Moderation and content rulesUsers mixedMy test: Agree–
Model choice–Users positiveMy test: Agree
Voice–Users mixedMy test: Agree
Characters and creator tools–Users positiveMy test: Agree
Price and points–Users negativeMy test: Agree
Safety and legitimacy–Users positiveMy test: Agree

“Users” is the balance of the YouTube reviews, Reddit threads and articles read for each brand page; “my test” is whether my own month on the site agreed with them.

My take

Users are happier with Caveduck: 4 of its 10 features come out positive, against ChatFAI's 1 of 10, with 4 features where the complaints win. Caveduck gets it on chat and roleplay. My own month did not always match the crowd: I disagreed with users on 3 points for ChatFAI and 2 points for Caveduck, and each disagreement is spelled out on the brand page.

My verdict on each

ChatFAI logo

ChatFAI

#54 on the ranking

ChatFAI is a character-chat site that was briefly the unfiltered Character.AI, and the numbers say that moment has passed.

Read my full ChatFAI analysis →

Written by Hunter Gray, Founder, Owner & Writer. Every figure is from the two brand pages and refreshes monthly. ChatFAI and Caveduck are two of the sites in my best AI girlfriend ranking, where the whole category is ordered on the same data.