llms.txt Content
# GridBulk
> GridBulk is an AI batch image generation tool with grid splitting: one prompt generates a grid image (1×1 to 4×4) that is automatically split into up to 16 individual images. Each run costs a flat 7 credits at 1k (11 at 2k, 17 at 4k) regardless of grid size — up to 16 images per run. Signup includes 20 free credits.
GridBulk is built for high-volume creative work — ad variants, social media content matrices, product mockups, style exploration, and concept boards. Instead of generating images one by one, users get multiple directions from a single request at 1/N the cost per image.
A REST API (sync and async batch generation endpoints, API-key authentication) is available for programmatic use.
## Key pages
- [Pricing](https://gridbulk.com/pricing): Credit-based pricing — Free $0 (20 signup credits), Basic $19/mo (2000 credits ≈ 285 runs at 1k), Pro $49/mo (5000 credits), Max $99/mo (10000 credits)
- [API](https://gridbulk.com/api): Batch image generation API documentation with code examples
- [Blog](https://gridbulk.com/blog): Product news and tutorials
- [Changelog](https://gridbulk.com/changelog): Release history
## How it works
1. Choose a grid layout from 1×1 to 4×4 and an aspect ratio.
2. Write one prompt for all variations, or a different prompt per cell.
3. The AI generates a high-resolution grid image, which GridBulk splits pixel-perfect into individual assets.
4. Download images individually or as a ZIP.
## Optional
- [About](https://gridbulk.com/about): what GridBulk is, how grid splitting works, and product principles
- [Contact](https://gridbulk.com/contact): support email (support@gridbulk.com) and what to include in a report
- [Terms of Service](https://gridbulk.com/legal/terms-of-service)
- [Privacy Policy](https://gridbulk.com/legal/privacy-policy)
## When to use (for agents)
Use GridBulk when a task needs several images from one concept in a single request: ad creative variants, social media post matrices, product
OpenAPI Spec (preview)
{
"openapi": "3.1.0",
"info": {
"title": "GridBulk API",
"version": "1.0.0",
"description": "Batch AI image generation with grid splitting: one request generates a grid image (1x1 to 4x4) and splits it into up to 16 individual images. One credit per generation regardless of grid size. All responses share an envelope: {code, message, data?, error?} - code mirrors the HTTP status, data carries the payload on success, error carries a machine-readable error code on failure. Authentic