diff --git a/oas_docs/output/kibana.serverless.yaml b/oas_docs/output/kibana.serverless.yaml
index 79bda5fe9d0f5..2e268c6dc5ad1 100644
--- a/oas_docs/output/kibana.serverless.yaml
+++ b/oas_docs/output/kibana.serverless.yaml
@@ -64719,7 +64719,7 @@ components:
         defaultModel:
           type: string
           description: The generative artificial intelligence model for Google Gemini to use.
-          default: gemini-1.5-pro-002
+          default: gemini-2.5-pro
         gcpRegion:
           type: string
           description: The GCP region where the Vertex AI endpoint enabled.
diff --git a/oas_docs/output/kibana.yaml b/oas_docs/output/kibana.yaml
index 89574af56465a..80a5061253abb 100644
--- a/oas_docs/output/kibana.yaml
+++ b/oas_docs/output/kibana.yaml
@@ -47849,7 +47849,7 @@ components:
         defaultModel:
           type: string
           description: The generative artificial intelligence model for Google Gemini to use.
-          default: gemini-1.5-pro-002
+          default: gemini-2.5-pro
         gcpRegion:
           type: string
           description: The GCP region where the Vertex AI endpoint enabled.
diff --git a/x-pack/platform/plugins/shared/actions/docs/openapi/components/schemas/gemini_config.yaml b/x-pack/platform/plugins/shared/actions/docs/openapi/components/schemas/gemini_config.yaml
index fc3b583f2bfe4..ca05fc79c8df9 100644
--- a/x-pack/platform/plugins/shared/actions/docs/openapi/components/schemas/gemini_config.yaml
+++ b/x-pack/platform/plugins/shared/actions/docs/openapi/components/schemas/gemini_config.yaml
@@ -12,7 +12,7 @@ properties:
   defaultModel:
     type: string
     description: The generative artificial intelligence model for Google Gemini to use.
-    default: gemini-1.5-pro-002
+    default: gemini-2.5-pro
   gcpRegion:
     type: string
     description: The GCP region where the Vertex AI endpoint enabled.
diff --git a/x-pack/platform/plugins/shared/actions/server/integration_tests/__snapshots__/connector_types.test.ts.snap b/x-pack/platform/plugins/shared/actions/server/integration_tests/__snapshots__/connector_types.test.ts.snap
index 548b1ae67a755..1403669f503cc 100644
--- a/x-pack/platform/plugins/shared/actions/server/integration_tests/__snapshots__/connector_types.test.ts.snap
+++ b/x-pack/platform/plugins/shared/actions/server/integration_tests/__snapshots__/connector_types.test.ts.snap
@@ -7079,7 +7079,7 @@ Object {
     },
     "defaultModel": Object {
       "flags": Object {
-        "default": "gemini-1.5-pro-002",
+        "default": "gemini-2.5-pro",
         "error": [Function],
         "presence": "optional",
       },
diff --git a/x-pack/platform/plugins/shared/stack_connectors/common/gemini/constants.ts b/x-pack/platform/plugins/shared/stack_connectors/common/gemini/constants.ts
index e8d1d1702db2b..7ffa0093f4bfe 100644
--- a/x-pack/platform/plugins/shared/stack_connectors/common/gemini/constants.ts
+++ b/x-pack/platform/plugins/shared/stack_connectors/common/gemini/constants.ts
@@ -26,5 +26,5 @@ export enum SUB_ACTION {
 export const DEFAULT_TOKEN_LIMIT = 8192;
 export const DEFAULT_TIMEOUT_MS = 60000;
 export const DEFAULT_GCP_REGION = 'us-central1';
-export const DEFAULT_GEMINI_MODEL = 'gemini-1.5-pro-002';
+export const DEFAULT_GEMINI_MODEL = 'gemini-2.5-pro';
 export const DEFAULT_GEMINI_URL = `https://us-central1-aiplatform.googleapis.com` as const;