Social media content eats time. A weekly mix of feed posts, Stories, thumbnails and pins adds up to dozens of images, and AI image generators can fill much of that gap. The trick is to plan the formats first, so every image is the right shape for where it will appear. This guide gives you the sizes, a prompt template and a simple weekly routine for creating social media content with AI. For the engagement side, read our guide on how AI images affect social engagement.

Image Sizes to Generate For

Generating at the right aspect ratio saves cropping and keeps faces and text in frame. Common sizes (check each platform's current guidance, since they change):

  • Instagram feed: 1080 x 1350 pixels (4:5 portrait) takes the most screen space.

  • Stories and Reels covers: 1080 x 1920 pixels (9:16).

  • LinkedIn posts: around 1200 x 627 pixels for a link-style image.

  • X (Twitter): about 1600 x 900 pixels (16:9).

  • YouTube thumbnails: 1280 x 720 pixels (16:9).

  • Pinterest: 1000 x 1500 pixels (2:3).

A Prompt Template for Social Posts

Fill in one line for each part, then combine them into a single prompt:

  • Subject: what the image shows.

  • Style: photo, flat illustration, 3D, watercolor.

  • Mood and color: warm and bright, dark and moody, your brand palette.

  • Composition: close-up, centered subject, plenty of empty space for text.

  • Format: portrait or square, so the generator frames it correctly.

Leaving empty space for a headline is the most useful detail. It gives you room to add text yourself, which is more reliable than asking AI to draw words.

A Simple Weekly Routine

  • Monday: list the week's posts and write one sentence of purpose for each.

  • Tuesday: generate three options per post with the AI art generator, or use the Instagram story creator for Stories.

  • Wednesday: pick the best, fix any glitches and add text and your logo.

  • Thursday: schedule the posts.

  • Friday: review which images got saves and shares, and note the prompts that worked.

Quality Checks Before You Post

  • Look closely at hands, teeth, eyes and any text. These are the usual glitch areas.

  • View the image at phone size. If the subject is not clear, simplify.

  • Make sure it matches your brand colors and tone.

  • Follow platform rules on labeling realistic AI-generated images.

Mix AI With Real Content

AI images work best for concepts, backgrounds, illustrations and graphics. Real photos and video of your team, product or customers carry trust that generated images cannot. A mix of both usually performs better than all of one.

Get Started

Open the AI art generator, pick the aspect ratio for your first platform and generate three options for this week's post.

Related reading: Top AI image generators