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GEPA vs Vellum

GEPA

6.3#15 in ai prompt generatorsFree plan
Free planAPISelf-hosted
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Vellum

8.7#1 in ai agent platformsFrom $30 a month
Free planAndroidiOSWebAPI
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What both publish

FactGEPAVellum
IntegrationsThe project lists integrations with DSPy, MLflow, Comet ML Opik, Pydantic AI, OpenAI Cookbook, Hugging Face Cookbook, and Google ADK.OAuth integrations include GitHub, Notion, Linear, Airtable, Spotify, Gmail, Google Calendar, Slack, and other services, while MCP servers provide additional tools.

GEPA plans

  • GEPAFree

Vellum plans

  • BaseFree
  • FreeFree
  • Mighty$30 a month
  • Custom$50 a month
  • Super$100 a month
  • Ultra$200 a month

Pick GEPA if…

GEPA may suit developers optimizing systems with expensive rollouts, scarce data, or API-only models. It is also relevant when interpretable optimization traces are useful.

Pick Vellum if…

Vellum suits individuals seeking an assistant for files, calendars, email, code, and computer tasks. It is characterized as a personal assistant rather than a team or shared company tool.

Charts they share