Vellum AI
AI workflow and assistant platform for building, testing, and deploying LLM apps.
About this tool
Best for
AI workflows, assistant apps, prompt iteration, evaluation, deployment, and LLM products.
Key Features
- Build and configure AI assistants and workflows
- Use pay-as-you-go credits for AI operations
- Deploy with custom assistant email and subdomain
- Self-host open-source assistant when control matters
Pricing summary
Free start available. Pro example is $50/month with $10 platform fee, Medium processing, 10 GiB storage, and pay-as-you-go credits.
Pricing
Free
Start building with small processing and included storage.
- Small processing power
- 4 GiB storage
- Pay-as-you-go credits
- No credit card to start
Pro
Configurable assistant hosting with more processing and storage.
- $10/month platform fee included
- Medium processing power
- 10 GiB storage
- Credits billed separately
Self-hosted
Run the open-source assistant on your own infrastructure.
- Open-source assistant
- Deploy on your own hardware or cloud
- Control data and keys
- No platform fee
Other pricing notes
- Pricing checked on 2026-07-14 from the official Vellum pricing page.
- Credits are billed separately as used.
- Self-hosting is available for the open-source assistant.
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