# Function start type now available in Runtime Logs

**Published:** December 22, 2025 | **Authors:** Vincent Voyer, Tom Lienard

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For any request involving a Vercel Function invocation,  you can now view the function start type in the right hand details panel of Runtime Logs.

A Function invocation can be either: `Hot`, `Hot (prewarmed)` or `Cold`. When a Function was invoked and it's a `Cold` start, we also display the cold start duration like: `Cold (280ms)`.

[Try it out](https://vercel.com/d?to=%2F%5Bteam%5D%2F%5Bproject%5D%2Flogs) or learn more about [Runtime Logs](https://vercel.com/docs/logs/runtime).

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