DeepYard

LlamaIndex vs promptfoo

Side-by-side comparison built from DeepYard's structured catalog. Content updated Aug 21, 2026.

Direct Answer

LlamaIndex suits teams needing open-source access, data framework focus, and 51,792 GitHub stars in current listing data. promptfoo suits teams needing open-source access, evaluation focus, and 24,450 GitHub stars in current listing data. This summary reflects catalog metadata only for decision support, not independent testing.

What this comparison weighs

  • Pricing and free-tier availability
  • License model and deployment fit
  • GitHub adoption and contributor depth
  • Catalog tags, integrations, and supported workflows
L

LlamaIndex

Data framework for LLM applications — RAG, agents, and workflows — 47K+ stars

OSSFree
51.8K2d ago475
Visit GitHub
p

promptfoo

Test and evaluate LLM prompts and agents — 11K+ stars

OSSFree
24.4Ktoday318
Visit GitHub
MetricLlamaIndexpromptfoo
GitHub Stars51.8K24.4K
Contributors475318
Last CommitAug 20, 2026Aug 21, 2026
Open Issues651515
Licenseopen-sourceopen-source
Pricingopen-sourceopen-source
Free TierYesYes
Categorydev-toolsdev-tools
TrendingNoNo

Choose LlamaIndex if you need

  • • LlamaIndex stands out for Data Framework workflows that are not listed for promptfoo.
  • • LlamaIndex is the stronger pick when Chroma matters because that capability is listed only on its profile.
  • • LlamaIndex shows broader GitHub adoption with 51,792 stars versus 24,450 for promptfoo.

Choose promptfoo if you need

  • • promptfoo stands out for Evaluation workflows that are not listed for LlamaIndex.
  • • promptfoo is the stronger pick when Any Llm matters because that capability is listed only on its profile.
  • • promptfoo is the cleaner fit if you specifically need Evaluation workflows from the catalog tags.

Meaningful differences

  • • Workflow emphasis: LlamaIndex highlights Data Framework, while promptfoo highlights Evaluation.
  • • GitHub adoption: LlamaIndex shows 51,792 stars versus 24,450 for promptfoo.
  • • Contributor count: LlamaIndex lists 475 contributors and promptfoo lists 318.

Shared capabilities

  • • Open Source
  • • Openai
  • • Anthropic
  • • Gemini

Shared Tags

open-source

Only in LlamaIndex

ragdata-frameworkagentsworkflowspython

Only in promptfoo

evaluationtestingred-teamingsecurityci-cd

Limitations and evidence

  • • DeepYard compares structured public metadata; this is not an independent benchmark unless a test record is shown.
  • • Signals such as stars, contributors, and last commit indicate public activity, not purchase fit or runtime quality.
  • • Pricing and feature coverage reflect the stored listing snapshot and may lag vendor changes between refreshes.

Source links

Manifest content date: 2026-08-21

About LlamaIndex

LlamaIndex is the leading data framework for building LLM-powered applications. Provides data connectors for 160+ sources, advanced RAG pipelines, document agents, and a workflow engine for complex agentic applications. The standard for connecting LLMs to your data.

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About promptfoo

promptfoo is an open-source tool for testing, evaluating, and red-teaming LLM applications. Run automated evaluations across multiple models and prompts, compare outputs side-by-side, detect regressions, and test for security vulnerabilities. Supports custom assertions, CI/CD integration, and model-graded evaluations.

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