From 6008b2a7cec12477cd7f903aeda95943d6386bfe Mon Sep 17 00:00:00 2001
From: Jean Bispo <1jeanbispo@gmail.com>
Date: Mon, 25 May 2026 21:40:09 -0300
Subject: [PATCH 1/4] feat(gemini): gemini-3.5-flash support

---
 packages/types/src/providers/gemini.ts | 13 +++++++++++++
 packages/types/src/providers/vertex.ts | 12 ++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/packages/types/src/providers/gemini.ts b/packages/types/src/providers/gemini.ts
index 4734606d5d..eea5f0ad61 100644
--- a/packages/types/src/providers/gemini.ts
+++ b/packages/types/src/providers/gemini.ts
@@ -6,6 +6,19 @@ export type GeminiModelId = keyof typeof geminiModels
 export const geminiDefaultModelId: GeminiModelId = "gemini-3.1-pro-preview"
 
 export const geminiModels = {
+	"gemini-3.5-flash": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		supportsReasoningEffort: ["minimal", "low", "medium", "high"],
+		reasoningEffort: "medium",
+		inputPrice: 1.5,
+		outputPrice: 9,
+		cacheReadsPrice: 0.15,
+		cacheWritesPrice: 0.083,
+		supportsReasoningBudget: false,
+	},
 	"gemini-3.1-pro-preview": {
 		maxTokens: 65_536,
 		contextWindow: 1_048_576,
diff --git a/packages/types/src/providers/vertex.ts b/packages/types/src/providers/vertex.ts
index e27c0cb101..7ded02abe4 100644
--- a/packages/types/src/providers/vertex.ts
+++ b/packages/types/src/providers/vertex.ts
@@ -6,6 +6,18 @@ export type VertexModelId = keyof typeof vertexModels
 export const vertexDefaultModelId: VertexModelId = "claude-sonnet-4-5@20250929"
 
 export const vertexModels = {
+	"gemini-3.5-flash": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		supportsReasoningEffort: ["minimal", "low", "medium", "high"],
+		reasoningEffort: "medium",
+		inputPrice: 1.5,
+		outputPrice: 9,
+		cacheReadsPrice: 0.15,
+		cacheWritesPrice: 0.083,
+	},
 	"gemini-3.1-pro-preview": {
 		maxTokens: 65_536,
 		contextWindow: 1_048_576,

From c2a777c38b19e88bebbdf9c44961848ca5a78b8d Mon Sep 17 00:00:00 2001
From: Jean Bispo <1jeanbispo@gmail.com>
Date: Mon, 25 May 2026 21:52:07 -0300
Subject: [PATCH 2/4] fix(vertex): reaffirm lack of support for reasoning
 budget

---
 packages/types/src/providers/vertex.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/types/src/providers/vertex.ts b/packages/types/src/providers/vertex.ts
index 7ded02abe4..f83262e5ed 100644
--- a/packages/types/src/providers/vertex.ts
+++ b/packages/types/src/providers/vertex.ts
@@ -17,6 +17,7 @@ export const vertexModels = {
 		outputPrice: 9,
 		cacheReadsPrice: 0.15,
 		cacheWritesPrice: 0.083,
+		supportsReasoningBudget: false,
 	},
 	"gemini-3.1-pro-preview": {
 		maxTokens: 65_536,

From d8d9f52e1d4c7dd926dc2c4b9d94ae4e451fbd79 Mon Sep 17 00:00:00 2001
From: Jean Bispo <1jeanbispo@gmail.com>
Date: Tue, 26 May 2026 17:10:46 -0300
Subject: [PATCH 3/4] Update packages/types/src/providers/gemini.ts

Co-authored-by: edelauna <54631123+edelauna@users.noreply.github.com>
---
 packages/types/src/providers/gemini.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/types/src/providers/gemini.ts b/packages/types/src/providers/gemini.ts
index eea5f0ad61..b26faa39bd 100644
--- a/packages/types/src/providers/gemini.ts
+++ b/packages/types/src/providers/gemini.ts
@@ -16,7 +16,7 @@ export const geminiModels = {
 		inputPrice: 1.5,
 		outputPrice: 9,
 		cacheReadsPrice: 0.15,
-		cacheWritesPrice: 0.083,
+		cacheWritesPrice: 1.0,
 		supportsReasoningBudget: false,
 	},
 	"gemini-3.1-pro-preview": {

From beca98387492ed11d2eb385dd211c3acf60ffb9f Mon Sep 17 00:00:00 2001
From: Jean Bispo <1jeanbispo@gmail.com>
Date: Tue, 26 May 2026 17:11:04 -0300
Subject: [PATCH 4/4] Update packages/types/src/providers/vertex.ts

Co-authored-by: edelauna <54631123+edelauna@users.noreply.github.com>
---
 packages/types/src/providers/vertex.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/types/src/providers/vertex.ts b/packages/types/src/providers/vertex.ts
index f83262e5ed..0709561a72 100644
--- a/packages/types/src/providers/vertex.ts
+++ b/packages/types/src/providers/vertex.ts
@@ -16,7 +16,7 @@ export const vertexModels = {
 		inputPrice: 1.5,
 		outputPrice: 9,
 		cacheReadsPrice: 0.15,
-		cacheWritesPrice: 0.083,
+		cacheWritesPrice: 1.0,
 		supportsReasoningBudget: false,
 	},
 	"gemini-3.1-pro-preview": {