Try for free

Pricing
Select your plan.

index4.ai is the full AI index for your documents — connect, index, and search for one fixed monthly price.

Every account starts with 5,000 free pages and 1,000 queries — no plan required to try index4.ai.

Billing cycle:

Free plan

Free

For trying index4.ai on real workloads — no credit card required.

Free
  • Queries 1,000 in total
  • Ingest —
  • Burst 5,000 pages
  • Storage 5,000 pages
Try for free
Solo builder

Starter

For small projects getting a RAG pipeline off the ground.

€89 / month
  • Queries 75,000 / month
  • Ingest 12,000 pages / month
  • Burst 80,000 pages
  • Storage 175,000 pages
Get started
Small team

Professional

For teams shipping production agents on real workloads. Our most popular option.

€199 / month
  • Queries 200,000 / month
  • Ingest 20,000 pages / month
  • Burst 200,000 pages
  • Storage 500,000 pages
Get started
Small business

Business

For growing businesses scaling RAG across multiple products.

€399 / month
  • Queries 400,000 / month
  • Ingest 40,000 pages / month
  • Burst 400,000 pages
  • Storage 1,000,000 pages
Get started
High volume

Advanced

For high-volume deployments with demanding workloads.

€719 / month
  • Queries 800,000 / month
  • Ingest 80,000 pages / month
  • Burst 800,000 pages
  • Storage 2,000,000 pages
Get started

Features
Included in every index4.ai plan.

Ingestion & indexing

  • Upload manually, via your AI agent, or with our CLI and developer toolsets — or sync SharePoint and other cloud storage with cloud connectors.
  • Patented structure-aware chunking, OCR-aware on scanned PDFs.
  • 50+ filetypes supported including tables and visual content.
Documents
pdfdocdocxdotxrtftxtmdhtmlhtmxml
Presentations
pptpptxppsppsxpotpotxkey
Spreadsheets
xlsxlsxxlsbxltxcsvnumbersodsodc
Images
pngjpgjpeggifbmptiftiffsvgwebpicoheicheifpsd
Audio & video
mp4movwebmmkvavim4vmpegmpgmp3wavm4aaacoggflacopus
Other
epubmobidjvudwgdxfdwfdwfxvsdvsdxaiepspsprnxpsoxpspubmdipagesodpodfodt

Initial burst uploads

  • Your ongoing ingest allowance (pages / month) covers steady-state operation. On top of it, every plan includes a one-time "burst upload" allowance during your first few months — bring in your existing corpus without touching the monthly limit.
FreeStarterProfessionalBusinessAdvanced
5,000 pages80,000 pages200,000 pages400,000 pages800,000 pages
  • Fast, accurate search with ranking out of the box.
  • SDK, REST API, and MCP server for direct agent integration.
  • Hierarchical chunks returned with full source context.

Integration

  • Drop in alongside LangChain, LlamaIndex, or any agent stack.
  • OpenAPI spec + typed SDKs.

Reliability & support

  • Uptime SLA on paid plans.
  • Email + chat support; dedicated channel from Business tier.