Portkey vs Vellum
A detailed comparison to help you choose between Portkey and Vellum.
Portkey AI gateway for production LLM apps | Vellum LLM app development platform | |
|---|---|---|
| Rating | 4.2 (277 reviews) | 4.8 (237 reviews) |
| Pricing Model | freemium | freemium |
| Starting Price | Free tier available | Free tier available |
| Best For | Engineering teams building production AI apps wanting reliability, cost optimization, and observability | Product and engineering teams building LLM-powered features who need structured prompt management |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tierapi accessopen sourcebyok | free tierapi access |
| Visit Portkey → | Visit Vellum → |
Portkey
Pros
- + Model routing and fallbacks
- + Cost optimization via caching
- + 100+ model support
Cons
- - Infrastructure tool — not end-user AI
- - Developer-only
Vellum
Pros
- + Prompt version control
- + Evaluation framework
- + Workflow builder
Cons
- - Developer tool
- - Less known vs LangChain
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