Batch your Pinterest pins with ChatGPT
Pinterest rewards steady pinning over weeks. ChatGPT can write thirty descriptions in one go and spread them across your calendar; you add the images as you make them.
Pinterest publishing specs
Limits Postika checks before scheduling
| Caption length | 800 github.com |
|---|---|
| Images per post | 5 github.com |
| Image formats | JPEG, PNG github.com |
| Alt text | 500 github.com |
| Video formats | MP4, M4V help.pinterest.com |
| Min video length | 4 s help.pinterest.com |
| Max video length | 5 min help.pinterest.com |
| Aspect ratios | 9:16 · 1:2 · 2:3 · 3:4 · 4:5 · 1:1 help.pinterest.com |
| Max file size | 20 MB help.pinterest.com |
Official limits from the network's documentation (checked November 5, 2026). Postika enforces its own limits where they are lower.
Step by step
- 1
Give ChatGPT a list of products, recipes or articles with their links.
- 2
Ask for one description per pin and a rhythm, for example two pins a day for three weeks.
- 3
ChatGPT creates the pins in Postika pending approval.
- 4
Attach each pin's image (made in your design tool or in ChatGPT) and approve.
Example prompts
- Here are 15 products with links. Write a Pinterest description for each under 400 characters, and create them pending approval at 09:00 and 21:00 daily starting Monday.
- Write 3 different pin descriptions for my 'easy weeknight pasta' recipe, for three different images, one per week on Thursdays.
- Create an image for a pin about 'cozy reading corners', then create the pin pending approval Saturday 20:00. I'll attach the image.
- List my pins for the next 3 weeks and tell me which links appear more than twice.
- Make every scheduled pin description start with the product type.
Pinterest limits ChatGPT must follow
| Rule | Postika |
|---|---|
| Description | 500 characters |
| Image | Required, 1 per pin |
| Text-only | Not allowed |
Since an image is required and the connector only passes text, ChatGPT creates every pin in approval or draft mode. Postika's limit is one image per pin, even where Pinterest supports more. See Pinterest scheduling.
A batching routine for shops and food blogs
The volume Pinterest likes is hard to keep up by hand. With ChatGPT, one session produces a few weeks of pins: you paste the list of products or recipes, ChatGPT writes the descriptions and places them in Postika at your chosen times. Then, whenever you have images ready, you open the pending pins and attach them.
If you make the images in ChatGPT, generate them in the same chat so they match each description, download them and attach. For the same product, use different images and descriptions on different weeks rather than repeating one pin. Online shops: see Postika for ecommerce. For long-article SEO descriptions, the Claude Pinterest guide goes deeper.
Not included
Postika does not create boards, show Pinterest analytics or generate images. Pick boards and check performance in Pinterest. Pricing depends on connected channels only, from €29/month (pricing).
Pin descriptions that read well
Ask ChatGPT for descriptions that start with what the pin is (the product type or the dish), follow with one useful detail (size, time to cook, material) and end with a reason to click. Keep keywords natural; repeating the same word five times reads badly. Stay under 500 characters, which Postika checks before saving the pin.
Turn ChatGPT into your social media scheduler
- 1
In Postika, create a project and connect the channels you want ChatGPT to use.
- 2
In ChatGPT, open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
- 3
Back in Apps & Connectors, click Create. Paste
https://postika.app/api/mcpand choose OAuth as the authentication. - 4
Click Create, then click Allow in the Postika window that opens.
- 5
In a new chat, enable the Postika connector from the composer and ask "Which channels do I have in Postika?" to confirm it works.
Frequently asked questions
Can ChatGPT schedule Pinterest pins?
ChatGPT can create the pins in Postika with descriptions and times. You attach the image to each pin in Postika and approve it before it is published.
Can I use ChatGPT images for my pins?
Yes. Download the image from ChatGPT and attach it to the pending pin in Postika. The connector cannot transfer the file for you.
How many pins can I schedule with Postika?
Unlimited. Every Postika plan includes unlimited posts.
Keep reading
- Schedule Pinterest Pins in advanceSchedule Pinterest Pins with an image or video and a description. Postika checks the 500-character limit and publishes on your calendar date.
- Turn ChatGPT into your social media schedulerConnect ChatGPT to Postika in developer mode and let it write, schedule and list posts on Instagram, LinkedIn, X and 6 more networks, with your approval.
- Pinterest descriptions that people find, written by ClaudeClaude writes keyword-rich Pinterest descriptions from your blog posts or products; you add the pin image in Postika and approve. 500 characters max.
- From ChatGPT caption to scheduled Instagram postUse ChatGPT to write Instagram captions and choose posting times, then add your images in Postika and approve. Caption, carousel and Reel limits enforced.
- Use ChatGPT to keep your TikTok calendar fullBrainstorm TikTok hooks with ChatGPT, let it create the captions and slots in Postika, then upload your clips and approve. Video or 35-image carousels.