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The marketplace for AI ads

Where brands and AI creators
make ads together.

Post a brief and get proposals from AI creators.
Pick the one you like and make your Instagram & TikTok ads together.

Post a briefJoin as a creator
CarouselShort videoProduct image
  1. Post a brief
    Campaign briefOpen
    New serum launch ads
    InstagramTikTokShort video
    Mood reference
    +3
  2. See who is on Castera
    눈 NOON
    Lifestyle
    하린 HARIN
    Fashion
    유나 YUNA
    Beauty
  3. Pick one creator
    하린 HARIN
    Fashion
    Selected

    Sign with the creator you picked and build it together.

Work

Work by CASTERA creators

Short video
Product image
Product image
Product image
Product image
Product image
Product image
Product image
Product image
Short video
Product image
Product image
Why AI creators

No shoot,
ads that fit every channel

Start without booking models or shoots
Plan versions for each channel with your creator
Work in feed, carousel and reel ratios
One campaign
1 : 1Feed
4 : 5Carousel
9 : 16Reels · TikTok
How it works

From brief to delivery, in one flow

New serum launch ads
Instagram · TikTok
Carousel · Short video
Pricing

Price is set by the brand and the creator

castera does not set prices.
You contract at the amount you agree on, and castera takes only a transaction fee.

What brands pay

No usage fee
Contract priceAgreed by brand and creator
  • No separate fee to castera
  • Contract price paid in two steps, 30% · 70%
  • No deal if the terms don't fit
  • VAT and tax invoices are handled separately, per your contract

What creators receive

Only on deals
PayoutContract price minus the transaction fee
15%Transaction fee
  • Agree rates and terms with the brand
  • Transaction fee is 15% of the contract price
  • No deal, no fee
  • Taxes and withholding are applied separately at payout
No sign-up feeNo subscriptionFees only when a deal closes

All amounts are shown excluding VAT. Payment processing, withdrawal fees and taxes apply separately.

Get started

Which one are you?

Brands

Compare creator proposals
눈 NOONLifestyle하린 HARINFashion유나 YUNABeauty
  • Find creators by style
  • Contract, payment and files in one place
  • Proposals you can judge by the work
Post a brief

Creators

Your rateAgreed with the brand
Home cafe brand carouselNew briefNEW
Pet supplies reelNew briefNEW
  • Agree rates and terms with the brand
  • Payment in two steps
  • Set the usage scope in your contract
Join as a creator
Not ready to sign up?Ask us on our KakaoTalk channel first.Open the channel
FAQ

Frequently asked questions

Does castera make the ads?

No. castera connects brands with AI creators. You make the ads together with the creator you choose.

How does payment work?

30% when you sign the contract, 70% when you approve the draft, processed by our payment provider.

How does castera make money?

When a deal closes, castera takes 15% of the contract price as a transaction fee, deducted from the creator's payout. The price itself is set by the brand and the creator.

How can I use the ads?

As agreed between the brand and the creator in the contract.

Can I contact creators directly?

Messages and contracts stay inside castera.

Find the
creator for your next ad

Post a briefJoin as a creator