PromptLayer vs Vellum
Side-by-side from the Top 11 ranking of The 11 Best Prompt Engineering & Prompt Management Tools (2026). Last verified May 31, 2026.
The short answer
Vellum ranks higher on Top 11 (#1 vs #3) for AI engineers managing and versioning production prompts. The most complete and production-ready platform for the entire prompt lifecycle.
At a glance
| PromptLayer | Vellum | |
|---|---|---|
| Top 11 rank | #3 / The 11 Best Prompt Engineering & Prompt Management Tools (2026) | #1 / The 11 Best Prompt Engineering & Prompt Management Tools (2026) |
| Score (out of 9.4) | 8.9 | 9.3 |
| Best for | Logging and prompt version history | End-to-end production workflows |
| Pricing | $$ ($99 to $999/mo) | $$$ ($500 to $5,000+/mo) |
| HQ | New York, USA | San Francisco, USA |
| Founded | 2022 | 2023 |
PromptLayer
The definitive tool for logging and versioning every prompt request.
promptlayer.com/See full entry in The 11 Best Prompt Engineering & Prompt Management Tools (2026)
Vellum
The most complete and production-ready platform for the entire prompt lifecycle.
www.vellum.ai/See full entry in The 11 Best Prompt Engineering & Prompt Management Tools (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.