Comparison

LlamaIndex vs Ray

No clear leader: Ray (66.8) and LlamaIndex (66.3) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
LlamaIndex66
Ray67
Score
Vioscale score
LlamaIndex66 / 100high · 75%updating
Ray67 / 100medium · 68%updating
Pricing
Free tier
LlamaIndex
Ray
Model
LlamaIndexfreemium
Price level
LlamaIndexmid
Rayfree
Starting price
LlamaIndex$50
Ray
Transparent
LlamaIndex
Ray
Integrations
Count
LlamaIndex3
Ray17
Reliability
Sla pct
LlamaIndex99.9
Ray
Status page
LlamaIndex
Ray
Adoption
Dependent repos
LlamaIndex0
Github stars
LlamaIndex51,883
Package downloads weekly
LlamaIndex1,685,400
Activity
Commits last 30d
LlamaIndex32
Ray100
Release
Cadence days
LlamaIndex12
Ray18
History
LlamaIndex20 items
License
Spdx
LlamaIndexMIT
Language
Primary
LlamaIndexPython
Market

Capabilities

Feature-by-feature on the axes that matter for mlops & llmops tools. “-” means undocumented, not absent.

Core
Tool role
LlamaIndexAgent / RAG framework
Ray-
Deployment
Self-hostable / OSS core
LlamaIndex
Ray
Managed cloud available
LlamaIndex
Ray
On-prem / VPC deployment
LlamaIndex
Ray
Observability
LLM tracing / observability
LlamaIndex
Ray-
Evaluation (offline / LLM-judge / human)
LlamaIndex
Ray-
Dev
Prompt management + versioning
LlamaIndex
Ray-
Tracking
Experiment tracking / model registry
LlamaIndex
Ray
Serving
Model serving / inference endpoint
LlamaIndex
Ray
Interop
OpenTelemetry / OpenLLMetry compatible
LlamaIndex
Ray-
Framework-agnostic
LlamaIndex
Ray
Gateway
Multi-provider model support
LlamaIndex
Ray
Data
No-train-on-customer-data guarantee
LlamaIndexUnknown
Ray-

What each one is

The product in its own terms, so the numbers below have context.

LlamaIndex

LlamaParse is a cloud-based document parsing platform that uses vision language models and intelligent agents to automatically process complex documents—including PDFs, images, and office files—with support for layout detection, multi-modal content, and 80+ languages. It transforms document ingestion workflows with agentic extraction and indexing capabilities.

Independently observed

Ray

Ray is an open-source unified framework for scaling Python and machine learning applications across any infrastructure. It provides distributed compute primitives, specialized AI libraries for data processing, model training, tuning, and serving, with seamless scaling from development environments to large clusters.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

LlamaIndex

from $50/moHybridFree tier

Free tier with 10K monthly credits; pay-as-you-go starting at $50/month. Credit pricing: 1,000 credits = $1.25.

  • FreeFree
    • Basic parsing
    • Up to 130+ file formats
    • File upload only
    • Community support
  • Starter$50/month up to 400K credits
    • Multiple parse tiers (Cost Effective, Agentic, Agentic Plus)
    • Auto Mode smart tier routing
    • Advanced table and chart extraction
    • Structured JSON output
    • Extraction agents
    • +3 more
  • Pro$500/month up to 4M credits
    • All Starter features
    • Classification & splitting
    • Sheets (spreadsheet data extraction)
    • Agents Builder
    • External data sources
    • +3 more
  • EnterpriseContact sales
    • Volume discount on credits
    • 5x higher rate limits
    • Enterprise SSO
    • SaaS or Hybrid cloud deployment
    • Dedicated account manager
    • +1 more
as of verify ↗

Ray

FreeFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
LlamaIndex
Ray
CLI
LlamaIndex
Ray
Deployment
Cloud / SaaS
LlamaIndex
Ray
Self-hosted
LlamaIndex
Ray
On-premise
LlamaIndex
Ray
Hybrid
LlamaIndex
Ray

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

LlamaIndex

3 total
  • AWS
  • Microsoft Azure
  • GitHub
Independently observed

Ray

19 total
  • PyTorch
  • TensorFlow
  • AIBrix
  • AReaL
  • Cosmos Curate
  • Daft
  • Data-Juicer
  • DeltaCAT
  • Modin
  • NeMo Curator
  • NeMo-RL
  • OpenRLHF
  • RayDP
  • ROLL
  • SkyRL
  • SLIME
  • Syftr
  • verl
  • vLLM
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.

LlamaIndex vs Ray: an evidence-based comparison · Vioscale