Criterion CrewAI LlamaIndex
CategoryAI Agents & FrameworksRAG & Vector Databases
In one sentenceOpen-source Python framework for teams of role-based AI agents, with a hosted platform for building and running them.Open-source framework for connecting LLMs to your data, plus the commercial LlamaParse document platform.
Problem it solvesCoordinating multiple AI agents and complex workflows without building orchestration from scratch.Getting messy documents into a form that LLMs can search and reason over accurately.
Free planYesYes
Developer APIYes — docsYes — docs
Open sourceYesYes
PlatformsPython, Web (CrewAI platform)Python, Web (LlamaCloud)
Pricing (summary)The CrewAI framework is free under MIT. The hosted platform has a free Basic plan with 50 workflow executions per month and a custom-priced Enterprise plan. Model API costs are separate.
Checked 2026-10-19
The LlamaIndex framework is free under MIT. LlamaParse plans: Free with 10K credits, Starter $50/month (40K credits), Pro $500/month (400K credits) and custom Enterprise; 1,000 credits cost $1.25.
Checked 2026-10-19
Strengths
  • Easy multi-agent abstraction
  • MIT licence
  • Free hosted tier
  • Strong focus on data and documents
  • MIT licence
  • Clear credit pricing ($1.25 per 1,000 credits)
Limitations
  • Free plan limited to 50 workflow executions per month
  • No published price between Free and Enterprise
  • Python 3.10-3.13 only
  • LlamaParse is not open source
  • Framework is no longer the company's main focus per its README
  • Credit cost per page varies by parsing mode