AI Instagram caption generator

Describe the post, pick a tone, and generate caption options via the FlashKit Gemini API. This is one of the tools that is not local — the prompt is sent to Google Gemini after consent.

Treat output as a draft. Check facts, avoid trademarked slogans you do not own, and edit hashtags so they match the actual photo.

How to Use

  1. Write what is in the photo or Reel in plain language.
  2. Choose tone and whether you want hashtags or emojis.
  3. Accept the Gemini disclosure.
  4. Generate, then edit. Run the result through the word counter if you have a length cap.

Key Features

  • Tone and hashtag controls
  • Uses the hardened /api/gemini/generate route — no browser Gemini key
  • Consent before the prompt is sent
  • Free-form editing after generation

Frequently Asked Questions

Is my caption prompt stored?

The request goes to Gemini through FlashKit’s server. Do not include private customer data. See the privacy policy for the current vendor list.

Why did generation fail?

The API key may be unset, rate-limited, or Gemini may be down. The UI should show a generic error, not a key.

Related Tools