Chunkr vs Extend
A side-by-side comparison of Chunkr and Extend, two Data Ops tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Chunkr | Extend |
|---|---|---|
| Category | Data Ops | Data Ops |
| Pricing | FREEMIUM | FREEMIUM |
| License (differs) | Open core | Proprietary |
| Deployment (differs) | Hybrid | Cloud |
| Platforms (differs) | Web, API | API, Web |
| Model support (differs) | Self-contained (on-device) | Model-agnostic |
| Vendor (differs) | Lumina AI | Extend AI |
The honest brief
Chunkr
Grew from a pipeline built to parse ~600M pages of scientific literature, so it holds up on dense, complex document layouts.
- Self-host or call the managed API
- Layout analysis + OCR + semantic chunking
- Outputs HTML, Markdown, or JSON
- Free cloud tier (200 pages, no card)
- Accuracy below Reducto on hard layouts
- Lighter compliance coverage than Unstructured
- Smaller team / younger product
Extend
Ensembles multiple frontier models and pairs the API with a web Studio for schema iteration and evals — tuned for 99%+ accuracy on handwriting and tables.
- Handles handwriting, tables, mixed formats
- Studio UI for schema design + evals
- SDKs for Python, TypeScript, and CLI
- Free credits, then pay-as-you-go
- Used by Brex, Square, Checkr
- Newer than incumbent IDP vendors
- Cloud-first; self-host is enterprise-only
- Usage-credit pricing needs estimation