OpenAI released ChatGPT Images 2.5 on September 8, 2026 for all ChatGPT users, including the free plan. Reports describe it as faster than the previous version and add useful features such as sketch input, templates and the ability to edit one part of an image with inline comments. For bloggers, that means you can now create featured images, Pinterest pins and simple infographics in minutes without a design tool. This guide shares 25 practical prompts and the techniques that make them work.
What’s New in Images 2.5
- Speed: generations are noticeably quicker, according to launch coverage.
- Sketch input: draw a rough layout and ask ChatGPT to turn it into a finished image.
- Templates: start from ready-made layouts for posters, social posts and more.
- Inline comments: click on one area and describe a change instead of regenerating the whole image.
- Better text rendering: short headlines inside images are more readable than in older models.
Free vs Paid Access
| Free | Paid plans | |
|---|---|---|
| Access to Images 2.5 | Yes | Yes |
| Daily limits | Lower | Higher |
| Speed priority | Standard | Faster at busy times |
Exact limits change, so check your plan page in ChatGPT.
How to Write a Great Image Prompt
Use the S-S-C-T formula: Subject, Style, Composition, Text.
- Subject: what is in the picture (“a laptop on a wooden desk with a coffee mug”).
- Style: flat illustration, 3D render, photo, watercolour, minimal vector.
- Composition: aspect ratio (16:9 for blog headers, 2:3 for Pinterest), where to leave empty space.
- Text: the exact words in quotes, plus font style and position.
10 Prompts for Blog Featured Images
- “Create a 16:9 flat illustration of a person checking SEO charts on a laptop, blue and green palette, empty space on the left for a headline.”
- “A minimal 3D render of a magnifying glass over a search bar, soft pastel background, 16:9.”
- “A cozy home office at sunrise with a notebook titled ‘Content Plan’, photorealistic, 16:9.”
- “Flat vector of a credit card with coins and a shield icon, symbolising safe spending, green palette, no brand logos.”
- “Isometric illustration of a small online store with packages and a delivery van, bright colours.”
- “A robot and a human writing together at a desk, friendly cartoon style, warm colours.”
- “Top-down photo of a planner, phone and coffee, with sticky notes reading ‘Ideas’, ‘Draft’, ‘Publish’.”
- “Abstract background of connected nodes in purple and blue for an AI article, space for title in the centre.”
- “A student studying with floating flashcards around them, soft gradient background.”
- “Simple icon-style image of a calendar with a checkmark, for a productivity post, white background.”
8 Prompts for YouTube Thumbnails and Pinterest Pins
- “YouTube thumbnail, 16:9: surprised person pointing at large text ‘NEW AI TRICK’, bold yellow and black, high contrast.”
- “Pinterest pin, 2:3: ’10 Easy Blog Post Ideas’ in bold white text on a pink gradient with small doodle icons.”
- “Thumbnail with a split screen: ‘Before’ messy desk vs ‘After’ tidy desk, big arrow in the middle.”
- “Pin design: ‘Save $500 This Month’ with a piggy bank illustration, cream background, serif font.”
- “Thumbnail: a laptop showing a rising graph and the text ‘Traffic x3’, dark background with neon green.”
- “Pin: step-by-step checklist graphic titled ‘Launch Your Blog’, five numbered steps with icons.”
- “Thumbnail with a large question mark and text ‘Is It Worth It?’, red and white.”
- “Pin with a recipe-style layout but for marketing: ‘Ingredients for a Viral Post’.”
7 Prompts for Simple Infographics
- “Infographic, vertical, titled ‘How SEO Works’ with four steps: Crawl, Index, Rank, Click — icons for each.”
- “Comparison chart graphic: ‘Free vs Paid Tools’ with two columns and checkmarks.”
- “Timeline graphic showing ‘Blog Growth: Month 1, 3, 6, 12’ with milestones.”
- “Pie chart style illustration showing a sample budget: 50% needs, 30% wants, 20% savings (label as example).”
- “Flowchart: ‘Should I Post Today?’ with yes/no branches, playful style.”
- “Checklist infographic: ‘On-Page SEO Checklist’ with eight items and checkboxes.”
- “Process graphic: ‘From Idea to Published Post’ in five horizontal steps.”
Always double-check numbers and spelling in AI-generated infographics. Image models can still make small text errors.
Editing Tips: Change One Area Without Starting Over
- Click the area you want to change and describe the edit: “make the mug red”.
- Ask for variations of the same composition instead of a brand-new image.
- Use sketch input to fix layout problems: draw boxes where elements should go.
Mistakes to Avoid
- Asking for real brand logos or celebrities — avoid trademarks and likeness issues.
- Long paragraphs of text inside images — keep it to a short headline.
- Forgetting aspect ratio — always state 16:9, 1:1 or 2:3.
- Uploading images you do not own and asking to copy them.
A 5-Minute Workflow for Every New Blog Post
- Write the headline first. Your image should support it, not compete with it.
- Pick one visual metaphor. For a post about saving money, a piggy bank; for SEO, a magnifying glass.
- Generate three options using the same prompt with different styles (flat, 3D, photo).
- Edit the winner with inline comments: adjust colours to match your brand and leave space for the title.
- Export and compress. Save as JPG or WebP, aim for under 200 KB, and name the file with your keyword, such as “seo-checklist-2026.jpg”.
- Add alt text that describes the image in one sentence and includes the topic naturally.
Create a Consistent Brand Style
Readers recognise blogs with a consistent look. Add a short “style block” to the end of every prompt:
- “Brand colours: navy #1a237e and yellow #ffd54f.”
- “Style: flat vector, rounded shapes, soft shadows.”
- “Font: bold sans-serif headline, white text.”
- “Leave the right third empty for text.”
Save this block in a note and paste it every time. After a few posts, your images will look like they came from the same designer.
Image SEO Checklist
| Item | Why it matters |
|---|---|
| Descriptive file name | Helps Google understand the image |
| Alt text | Accessibility and image search |
| Compressed size | Faster page load and better Core Web Vitals |
| Correct dimensions | Avoids layout shift and blurry previews |
| Unique images | Stock photos used everywhere add little value |
Frequently Asked Questions
Is ChatGPT Images 2.5 free?
Yes, it is available on all plans, with lower limits on the free plan.
Can I use the images on my blog?
Generally yes, under OpenAI’s terms, but avoid trademarks and real people, and check the current usage policies.
What size should a blog featured image be?
A 1200×630 or 1200×675 (16:9) image works well for most WordPress themes and social sharing.
Final Thoughts
Images 2.5 makes good-looking visuals accessible to every blogger. Use the S-S-C-T formula, keep text short, and edit with inline comments instead of regenerating. Save your favourite prompts as templates so every post gets a consistent, branded look.
Note: AI products change quickly. The features, plans and dates in this article were checked in early October 2026. Always confirm the latest details on the official product page before you buy or rely on a feature.
