[Dev UI] Traces / Model Runner - Better support for unregistered models #3202
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1 of 2 issues completed
Description
- The following CL introduced a regression, where the appropriate model is not selected if loading a trace that used an "unregistered" model. https://github.com/FirebasePrivate/genkit-ui/pull/1521. That's because it always tried to look up the model name in the registry. For example, loading a trace that used
gemini-2.5-prowill end up selectinggemini-2.0-flash - We don't have good support generally for "unregistered" models, particularly loading from a trace
- If a suitable "closest" model cannot be found, most options default to false (multiturn, system prompt, etc) which causes details from the trace to be "lost".
- For example a message list [system, user, model, user] loaded from a trace will be reduced to just [user]