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fix(providers): add Gemini 3.x known_location Global routing and KNOWN_MODELS entries #9142

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Merged
DOsinga merged 3 commits into from
May 13, 2026
Merged

fix(providers): add Gemini 3.x known_location Global routing and KNOWN_MODELS entries #9142

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06a33d1
fix(providers): add Gemini 3.x known_location Global routing and KNOW…
clouatre May 11, 2026
37a5559
Merge remote-tracking branch 'origin/main' into fix/gemini3x-known-lo…
May 12, 2026
e1a74b5
cleanup: remove trivial parse tests, fix doc comment accuracy
May 12, 2026
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15 changes: 11 additions & 4 deletions crates/goose/src/providers/formats/gcpvertexai.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,8 @@ pub const KNOWN_MODELS: &[&str] = &[
"claude-sonnet-4@20250514",
"claude-3-5-haiku@20241022",
"claude-3-haiku@20240307",
"gemini-3.1-flash-lite",
"gemini-3.1-pro-preview",
"gemini-3-pro-preview",
"gemini-3-flash-preview",
"gemini-2.5-pro",
Expand Down Expand Up @@ -112,13 +114,15 @@ impl fmt::Display for GcpVertexAIModel {
impl GcpVertexAIModel {
/// Returns the default GCP location for the model.
///
/// Each model family has a well-known location based on availability:
/// - Claude models default to Ohio (us-east5)
/// - Gemini models default to Iowa (us-central1)
/// - MaaS models default to Iowa (us-central1)
/// Location routing by model family:
/// - Claude models: Ohio (us-east5)
/// - Gemini 3.x models: Global
/// - Other Gemini models: Iowa (us-central1)
/// - MaaS models: Iowa (us-central1)
pub fn known_location(&self) -> GcpLocation {
match self {
Self::Claude(_) => GcpLocation::Ohio,
Self::Gemini(name) if name.starts_with("gemini-3") => GcpLocation::Global,
Self::Gemini(_) => GcpLocation::Iowa,
Self::MaaS(_, _) => GcpLocation::Iowa,
}
Expand Down Expand Up @@ -369,6 +373,9 @@ mod tests {
let gemini_model = GcpVertexAIModel::try_from("gemini-2.5-flash")?;
assert_eq!(gemini_model.known_location(), GcpLocation::Iowa);

let gemini_3_model = GcpVertexAIModel::try_from("gemini-3.1-flash-lite")?;
assert_eq!(gemini_3_model.known_location(), GcpLocation::Global);

Ok(())
}

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