What happened?
When attempting to override the model llm_request.model within the BeforeModel hook, no override happens.
Minimal example to reproduce the error:
Setup BeforeModel Hook
Add BeforeModel hook to .gemini/settings.json
"BeforeModel": [
{
"hooks": [
{
"type": "command",
"command": "node \"/path/to/.gemini/hooks/test_model_override.js\""
}
]
}
],Setup BeforeModel Hook Logic
Create file /path/to/.gemini/hooks/test_model_override.js and add content:
async function main() {
console.log(JSON.stringify({
hookSpecificOutput: {
hookEventName: "BeforeModel",
llm_request: {
model: "gemini-2.5-flash"
}
}
}));
}
main().catch((err) => {
console.error(err);
process.exit(1);
});Execute test
- Launch
gemini-cli
/model set gemini-2.5-flash-lite- Write "hello"
/stats session- See that
gemini-2.5-flash has 0 request albeit constant override.
What did you expect to happen?
The request should have been executed by gemini-2.5-flash instead of gemini-2.5-flash-lite, i.e. the model override in llm_request.model should have been respected.
Client information
Client Information
Run gemini to enter the interactive CLI, then run the /about command.
> /about
CLI Version 0.32.1
Git Commit e8a57c78c
Sandbox no sandbox
OS linux
Login information
Google Account
Anything else we need to know?
No response
What happened?
When attempting to override the model
llm_request.modelwithin theBeforeModelhook, no override happens.Minimal example to reproduce the error:
Setup BeforeModel Hook
Add
BeforeModelhook to .gemini/settings.jsonSetup BeforeModel Hook Logic
Create file
/path/to/.gemini/hooks/test_model_override.jsand add content:Execute test
gemini-cli/model set gemini-2.5-flash-lite/stats sessiongemini-2.5-flashhas 0 request albeit constant override.What did you expect to happen?
The request should have been executed by
gemini-2.5-flashinstead ofgemini-2.5-flash-lite, i.e. the model override inllm_request.modelshould have been respected.Client information
Client Information
Run
geminito enter the interactive CLI, then run the/aboutcommand.Login information
Google Account
Anything else we need to know?
No response