GLM-Image

AI Social Media Image Generator - Create Posts in Seconds

Generate eye-catching social media images for Instagram, Facebook, LinkedIn, and more. Perfect sizes, consistent branding, unlimited variations.
Jan 12, 2026

AI Social Media Image Generator: Create Scroll-Stopping Posts in Seconds

Social media moves fast. Creating engaging visuals for every platform, post, and campaign can take hours. With Nano Banana Flash's AI social media image generator, you can create stunning, on-brand content in seconds—no design skills required.

Why Use AI for Social Media Images?

The Social Media Content Challenge

Traditional Social Media DesignAI-Powered Creation
1-3 hours per post designSeconds per post
Expensive design softwareFree to start
Requires design skillsNo skills needed
Hard to maintain consistencyEasy brand consistency
Limited by your creativityUnlimited AI variations

Key Benefits

  • Speed: Create weeks of content in minutes
  • Consistency: Maintain your brand aesthetic across all posts
  • Variety: Generate endless variations to keep your feed fresh
  • Cost: Fraction of hiring a designer or agency
  • Flexibility: Adapt content for any platform instantly

Social Media Platform Image Guide

Instagram

Feed Posts (Square - 1080x1080px)

  • Perfect for product showcases, quotes, and announcements
  • 1:1 aspect ratio works for most content types

Feed Posts (Portrait - 1080x1350px)

  • Takes up more screen real estate
  • Great for portraits, products, and storytelling

Stories (1080x1920px)

  • Full-screen vertical format
  • Ideal for behind-the-scenes, polls, Q&A

Reels (1080x1920px)

  • Cover thumbnails need to be eye-catching
  • Bold text and clear focal points

Prompt Examples:

Instagram square post, minimalist product photography, [your product] on clean background, soft shadows, brand colors [your colors], professional e-commerce style

Instagram portrait post, lifestyle shot of [product] in use, natural lighting, aesthetic setting, authentic feel, user-generated style

Instagram story template, bold typography "New Collection", gradient background in brand colors, modern and clean

Facebook

Link Previews (1200x630px)

  • Optimize for engagement with clear imagery
  • Include branding elements

Feed Posts (1200x1200px or 1200x900px)

  • Square or landscape formats
  • Works well for announcements and promotions

Prompt Examples:

Facebook link preview, promotional graphic for [offer/product], clear headline space, engaging imagery, professional design

Facebook post, announcement graphic with "Coming Soon" text, modern design, brand colors, eye-catching and professional

LinkedIn

Feed Posts (1200x1200px)

  • Professional, business-focused content
  • Infographics and data visualization work well

Prompt Examples:

LinkedIn square post, professional infographic about [topic], clean data visualization, corporate blue and white, business professional style

LinkedIn thought leadership image, minimalist quote graphic with whitespace, professional typography, subtle brand accent

Twitter/X

Posts (1600x900px)

  • 16:9 landscape format
  • Bold, clear messaging
  • High contrast for visibility

Prompt Examples:

Twitter banner, announcement graphic for [news], bold typography, high contrast, clear messaging, engaging visual

Twitter post image, quote graphic with attribution, clean design, brand colors, professional and shareable

Pinterest

Pins (1000x1500px)

  • 2:3 vertical ratio
  • Aesthetic, inspirational content
  • Text overlays for context

Prompt Examples:

Pinterest pin, vertical aesthetic flat lay of [products/items], cohesive color scheme, inspirational mood, shoppable content style

Pinterest pin, before-and-after transformation, split composition, clear labels, engaging and motivational

TikTok

Video Covers (1080x1920px)

  • Vertical format
  • Bold headlines
  • High contrast, attention-grabbing

Prompt Examples:

TikTok cover thumbnail, bold "Watch This" text, vibrant colors, high energy, eye-catching design, clear focal point

TikTok cover, tutorial thumbnail showing result, clear "How To" label, engaging visual, professional quality

Social Media Content Types You Can Create

Product Showcases

Display your products in the best light.

Prompts:

Product hero shot on gradient background, soft lighting, e-commerce quality, brand colors
Lifestyle product shot, [product] in authentic setting, natural lighting, aspirational aesthetic
Product collection, multiple items arranged artfully, cohesive styling, professional photography

Quote Graphics

Share inspiring messages and thought leadership.

Prompts:

Quote graphic with whitespace, elegant typography, inspirational message, subtle background texture, minimal design
Bold quote card, large typography, gradient background, modern and eye-catching
Handwritten style quote, authentic feel, paper texture background, personal and relatable

Announcement Graphics

Promote launches, sales, and news.

Prompts:

Launch announcement, "Coming Soon" bold text, excitement and anticipation, brand colors, professional design
Sale promotion graphic, "% OFF" prominent, urgent and exciting, clear call-to-action, energetic design
Event announcement, date and time clear, festive atmosphere, informative and engaging

Educational Content

Tips, how-tos, and valuable information.

Prompts:

5 tips graphic, numbered list format, clean layout, easy to read, shareable infographic
How-to illustration, step-by-step visual, clear instructions, educational style
Myth vs fact comparison, split layout, clear distinctions, informative design

Behind the Scenes

Show the human side of your brand.

Prompts:

Behind-the-scenes photo, authentic workplace moment, natural lighting, candid feel, documentary style
Team photo, casual and professional, authentic atmosphere, brand personality
Process showcase, work in progress, authentic and transparent, storytelling approach

User-Generated Style

Content that feels authentic and relatable.

Prompts:

User-generated style photo, casual composition, natural lighting, authentic vibe, relatable content
iPhone-style photo, candid moment, minimal editing, genuine feel, social native
Lifestyle snapshot, everyday moment, aesthetic and shareable, aspirational yet accessible

Creating Consistent Brand Content

Define Your Brand Visual Identity

Before generating, establish:

  • Color palette: Primary and secondary brand colors
  • Typography style: Modern, serif, playful, professional
  • Mood/tone: Luxury, friendly, authoritative, inspirational
  • Composition preferences: Minimal, busy, centered, asymmetrical

Create Brand Templates

Develop reusable prompt templates:

Template Example:

[Platform format] post for [brand name],
[subject matter],
color palette: [brand colors],
style: [brand style],
mood: [brand mood],
background: [preferred background],
composition: [preferred composition],
[additional specifications]

Use Consistent Elements

Include these in every prompt:

  • Brand colors (hex codes or descriptions)
  • Style keywords (minimalist, luxury, friendly)
  • Quality terms (professional, high-resolution)

Seasonal and Holiday Content

Spring

Themes: Renewal, growth, freshness, pastels

Prompts:

Spring collection announcement, flowers and fresh growth, soft pastel colors, renewal theme, light and airy
Easter promotion, festive but professional, spring colors, celebratory and fresh

Summer

Themes: Energy, brightness, vacation, vibrancy

Prompts:

Summer sale graphic, bright and vibrant, energy and excitement, sun and warmth themes
Beach lifestyle product shot, vacation vibe, bright colors, aspirational and fun

Fall/Autumn

Themes: Cozy, warmth, harvest, change

Prompts:

Autumn collection, warm earth tones, cozy atmosphere, leaves and harvest themes
Back to school promotion, fresh start energy, organized and prepared feel

Winter

Themes: Cozy, celebration, reflection, holidays

Prompts:

Holiday sale announcement, festive decorations, warm and celebratory, gift-giving theme
New Year promotion, fresh start, clean and modern, optimistic energy

Pro Tips for Better Social Media Images

1. Prioritize Mobile First

Most social media is consumed on mobile. Design for small screens:

Mobile-optimized design, clear focal point, readable at small sizes, bold elements, uncluttered composition

2. Use High Contrast

Ensure visibility in various feed contexts:

High contrast design, clear subject, stands out in feed, bold colors, attention-grabbing

3. Leave Space for Overlays

Consider platform UI elements:

Instagram feed post with bottom space for caption area, uncluttered lower third, clean composition
YouTube thumbnail with right-side space for title, clear focal point on left, balanced layout

4. Test Different Styles

Generate multiple variations:

[Your concept] in 3 different styles: minimalist photography, bold graphic design, authentic lifestyle

5. Include Text in Prompts

When you need text overlays:

Social media graphic with "SALE" text bold and prominent, clear hierarchy, professional typography design

Note: AI may not generate perfect text—you can add text in post-production.

Batch Content Creation Workflow

Step 1: Plan Your Content Calendar

Map out posts for the next 2-4 weeks by theme, product, or campaign.

Step 2: Create Base Templates

Develop 3-5 prompt templates that align with your brand.

Step 3: Generate Variations

Use your templates to generate multiple images for each planned post.

Step 4: Review and Select

Choose the best options and note what works for future reference.

Step 5: Schedule and Post

Add to your social media scheduler and post consistently.

Social Media Image Best Practices

DO:

✅ Use consistent brand colors and styles ✅ Optimize for each platform's dimensions ✅ Include clear focal points ✅ Test different angles and compositions ✅ Keep text minimal and readable ✅ Use high-quality, professional-looking images

DON'T:

❌ Use inconsistent or clashing colors ❌ Overcrowd with too many elements ❌ Ignore platform specifications ❌ Use low-resolution or blurry images ❌ Forget mobile optimization ❌ Use hard-to-read typography

Frequently Asked Questions

Can AI generate images with text?

AI can include text, but it may not be perfect. For important text (headlines, CTAs), we recommend generating the image first, then adding text using a design tool like Canva.

How do I maintain brand consistency?

Create a brand prompt template with your specific colors, styles, and mood. Use this as a base for all generations, varying only the subject matter.

What's the best image format for social media?

JPG is best for photographs, PNG for graphics with transparent backgrounds, and WebP for modern web optimization. Nano Banana Flash generates formats suitable for all platforms.

Can I use AI images commercially?

Yes! You own the rights to images generated from your prompts. Use them freely for your business social media accounts.

How many images should I generate per post?

We recommend generating 5-10 variations per post, then selecting the best 1-2 for publication. This gives you options while managing credits efficiently.

Start Creating Your Social Media Content

Ready to level up your social media presence?

  1. Define your brand style - colors, mood, aesthetic
  2. Choose your platform - use the correct dimensions
  3. Craft your prompt - be specific about what you want
  4. Generate variations - explore different options
  5. Schedule and post - maintain consistency

Start generating social media images →

For more social media tips, check out our content marketing guide.

AI Social Media Image Generator - Create Posts in Seconds