diff --git a/providers/vercel/models/google/gemini-2.5-flash-lite.toml b/providers/vercel/models/google/gemini-2.5-flash-lite.toml
index b488cf845b..67ea4cf2dd 100644
--- a/providers/vercel/models/google/gemini-2.5-flash-lite.toml
+++ b/providers/vercel/models/google/gemini-2.5-flash-lite.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-2.5-flash-lite"
+reasoning_options = [{ type = "toggle" }, { type = "effort", values = ["none", "minimal", "low", "medium", "high", "xhigh"] }, { type = "budget_tokens", min = 512, max = 24_576 }]
 name = "Gemini 2.5 Flash Lite"
 
 [cost]
diff --git a/providers/vercel/models/google/gemini-3-flash.toml b/providers/vercel/models/google/gemini-3-flash.toml
index e164849253..b10ab6007e 100644
--- a/providers/vercel/models/google/gemini-3-flash.toml
+++ b/providers/vercel/models/google/gemini-3-flash.toml
@@ -4,6 +4,7 @@ release_date = "2025-12-17"
 last_updated = "2025-12-17"
 attachment = true
 reasoning = true
+reasoning_options = [{ type = "effort", values = ["minimal", "low", "medium", "high"] }]
 temperature = true
 tool_call = true
 knowledge = "2025-03"
diff --git a/providers/vercel/models/google/gemini-3-pro-preview.toml b/providers/vercel/models/google/gemini-3-pro-preview.toml
index 6c6ae51cce..42d84685d6 100644
--- a/providers/vercel/models/google/gemini-3-pro-preview.toml
+++ b/providers/vercel/models/google/gemini-3-pro-preview.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3-pro-preview"
+reasoning_options = [{ type = "effort", values = ["low", "high"] }]
 
 [cost]
 input = 2
diff --git a/providers/vercel/models/google/gemini-3.1-flash-image-preview.toml b/providers/vercel/models/google/gemini-3.1-flash-image-preview.toml
index 1f09a9e3f6..215e9a4c29 100644
--- a/providers/vercel/models/google/gemini-3.1-flash-image-preview.toml
+++ b/providers/vercel/models/google/gemini-3.1-flash-image-preview.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3.1-flash-image-preview"
+reasoning_options = [{ type = "effort", values = ["minimal", "high"] }]
 name = "Gemini 3.1 Flash Image Preview (Nano Banana 2)"
 family = "gemini"
 
diff --git a/providers/vercel/models/google/gemini-3.1-flash-image.toml b/providers/vercel/models/google/gemini-3.1-flash-image.toml
index 703cbf6d16..59b81cc377 100644
--- a/providers/vercel/models/google/gemini-3.1-flash-image.toml
+++ b/providers/vercel/models/google/gemini-3.1-flash-image.toml
@@ -4,6 +4,7 @@ release_date = "2026-05-28"
 last_updated = "2026-05-28"
 attachment = true
 reasoning = true
+reasoning_options = [{ type = "effort", values = ["minimal", "high"] }]
 temperature = true
 tool_call = false
 open_weights = false
diff --git a/providers/vercel/models/google/gemini-3.1-flash-lite-preview.toml b/providers/vercel/models/google/gemini-3.1-flash-lite-preview.toml
index 792b9c59c7..a2f274acbf 100644
--- a/providers/vercel/models/google/gemini-3.1-flash-lite-preview.toml
+++ b/providers/vercel/models/google/gemini-3.1-flash-lite-preview.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3.1-flash-lite-preview"
+reasoning_options = [{ type = "effort", values = ["minimal", "low", "medium", "high"] }]
 family = "gemini"
 
 [cost]
diff --git a/providers/vercel/models/google/gemini-3.1-flash-lite.toml b/providers/vercel/models/google/gemini-3.1-flash-lite.toml
index f0ff3299bf..2896d4db3e 100644
--- a/providers/vercel/models/google/gemini-3.1-flash-lite.toml
+++ b/providers/vercel/models/google/gemini-3.1-flash-lite.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3.1-flash-lite"
+reasoning_options = [{ type = "effort", values = ["minimal", "low", "medium", "high"] }]
 family = "gemini"
 
 [cost]
diff --git a/providers/vercel/models/google/gemini-3.1-pro-preview.toml b/providers/vercel/models/google/gemini-3.1-pro-preview.toml
index a2cd5c8652..d25290b86c 100644
--- a/providers/vercel/models/google/gemini-3.1-pro-preview.toml
+++ b/providers/vercel/models/google/gemini-3.1-pro-preview.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3.1-pro-preview"
+reasoning_options = [{ type = "effort", values = ["low", "medium", "high"] }]
 family = "gemini"
 release_date = "2025-11-18"
 
diff --git a/providers/vercel/models/google/gemini-3.5-flash.toml b/providers/vercel/models/google/gemini-3.5-flash.toml
index bffe0cfd1c..e33009ddc9 100644
--- a/providers/vercel/models/google/gemini-3.5-flash.toml
+++ b/providers/vercel/models/google/gemini-3.5-flash.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemini-3.5-flash"
+reasoning_options = [{ type = "effort", values = ["minimal", "low", "medium", "high"] }]
 family = "gemini"
 
 [cost]
diff --git a/providers/vercel/models/google/gemma-4-26b-a4b-it.toml b/providers/vercel/models/google/gemma-4-26b-a4b-it.toml
index b0c991c766..c8563f3dac 100644
--- a/providers/vercel/models/google/gemma-4-26b-a4b-it.toml
+++ b/providers/vercel/models/google/gemma-4-26b-a4b-it.toml
@@ -1,4 +1,5 @@
 base_model = "google/gemma-4-26b-a4b-it"
+reasoning_options = [{ type = "toggle" }]
 open_weights = false
 
 [cost]