In the Adstudio assistant
In the app, TikTok is read at campaign level, so ad-level ranking is done over MCP. The assistant can put a TikTok ad's video on screen, except Spark Ads, whose post media TikTok's API does not return.
TikTok Ads · Best creative
Which TikTok ad creative performs best?
The best TikTok creative is the ad with the lowest cost per conversion in its ad group — and, for the reason why, the one people keep watching: 6-second views and completion tell you which hook works. Through Adstudio MCP, ChatGPT or Claude reads every ad's spend, conversions, video plays, 6-second views and 25, 50, 75 and 100% views, and ranks them.
The numbers that matter
What to read first.
- Cost per conversion by ad
- The result.
- 6-second views / video plays
- How many viewers the opening holds.
- Views at 100% / video plays
- Completion, for short videos.
- CTR by ad
- Whether people act after watching.
The method
How to break it down.
- 01Read ad-level metrics for the window.
- 02Rank ads within each ad group by cost per conversion.
- 03Compare 6-second view rate and completion to see why the winners win.
How Adstudio answers it
In the app, or from the AI you already use.
From ChatGPT or Claude, over MCP
query_performance reads every ad's spend, conversions and video quartiles; get_creatives returns the ad text and creative content.
- list_accounts
- query_performance
- get_creatives
Prompts
Copy one and ask.
- “Rank our TikTok ads from the last 30 days by cost per conversion and 6-second view rate.”
- “Which TikTok ads keep the most viewers to 100%? Compare them with the worst ones.”
Limits
What Adstudio will not tell you.
- Ad-level TikTok ranking needs MCP from ChatGPT, Claude, Gemini CLI or Cursor; the in-app assistant stops at campaign level.
- TikTok's API does not return Spark Ads' post media.
FAQ
Questions people also ask.
Their performance, yes. Their video is not returned by TikTok's API, so Adstudio links to the post instead.
It reads video plays and 6-second views per ad, so your AI can compare how well each opening holds viewers.
Creating an account costs nothing, but connecting an ad account needs a paid plan: Hobby at $19 a month, or Business at $39 per workspace a month. There is no trial, and the price does not depend on your ad spend.