Skip to content

AI Caption Generator

Postiv.io’s AI caption generator helps you create engaging content quickly while maintaining your unique brand voice.

Our AI analyzes:

  • Your brand voice settings
  • Past successful posts
  • Current social media trends
  • Platform-specific best practices

Then generates captions tailored to your style and audience.

  1. Open Post Editor

    Click “Create Post” from the dashboard

  2. Add Your Image or Video

    Upload media or select from your library

  3. Click “Generate Caption”

    Find the AI button (✨) in the caption editor

  4. Choose a Style

    Select from:

    • Professional
    • Casual
    • Witty/Humorous
    • Inspirational
    • Promotional
  5. Review Options

    AI generates 3-5 caption variations

  6. Select and Edit

    Choose your favorite and customize as needed

Best for: LinkedIn, B2B content, thought leadership

  • Formal tone
  • Industry terminology
  • Clear value proposition

Best for: Instagram, Facebook, community building

  • Conversational tone
  • Relatable language
  • Emoji-friendly

Best for: X, Threads, brand personality

  • Clever wordplay
  • Pop culture references
  • Light-hearted approach

Best for: Motivation, quotes, personal brands

  • Uplifting messages
  • Call to reflection
  • Emotional connection

Best for: Product launches, sales, announcements

  • Clear call-to-action
  • Benefit-focused
  • Urgency when appropriate

AI recommends relevant hashtags based on:

  • Your content
  • Trending tags
  • Industry relevance
  • Optimal hashtag count per platform

Generate multiple versions for:

  • A/B testing
  • Cross-platform posting
  • Content recycling

Fine-tune generated captions:

  • Make it shorter
  • Make it longer
  • More casual
  • More professional
  • Add emoji
  • Remove emoji

AI generation uses credits based on your plan:

PlanMonthly Credits
Starter50
Pro200
BusinessUnlimited

Each caption generation uses 1 credit. Hashtag suggestions are free.

Better results when you:

  • Upload relevant images first
  • Set your brand voice in settings
  • Specify the post’s purpose

AI generates starting points, not final content:

  • Add personal touches
  • Verify facts and links
  • Adjust for current events
  • Match your authentic voice

Improve suggestions over time:

  1. Use the 👍/👎 feedback buttons
  2. AI learns your preferences
  3. Future suggestions improve
  1. Upload product image
  2. Select “Promotional” style
  3. Generate caption
  4. Add pricing/CTA details
  1. Upload candid photo
  2. Select “Casual” style
  3. Generate caption
  4. Add personal story elements
  1. Upload infographic
  2. Select “Professional” style
  3. Generate caption
  4. Add key takeaways
  • Ensure image is clear and on-topic
  • Update your brand voice settings
  • Try a different style
  • Provide more context in settings
  • Check usage in SettingsSubscription
  • Consider upgrading for more credits
  • Use credits strategically for important posts