Fixes #4836: Update Gemini 2.5 Flash pricing to correct values

- Updated input price from /bin/sh.15/M to /bin/sh.30/M
- Updated output price from /bin/sh.60/M to .50/M
- Applied fixes to both Gemini and Vertex providers
- Affects gemini-2.5-flash-preview-04-17 and gemini-2.5-flash-preview-05-20 models

Author: roomote

packages/types/src/providers/gemini.ts

@@ -11,7 +11,7 @@ export const geminiModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: false,
-		inputPrice: 0.15,
+		inputPrice: 0.3,
 		outputPrice: 3.5,
 		maxThinkingTokens: 24_576,
 		supportsReasoningBudget: true,
@@ -22,15 +22,15 @@ export const geminiModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: false,
-		inputPrice: 0.15,
-		outputPrice: 0.6,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
 	},
 	"gemini-2.5-flash-preview-05-20:thinking": {
 		maxTokens: 65_535,
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: true,
-		inputPrice: 0.15,
+		inputPrice: 0.3,
 		outputPrice: 3.5,
 		cacheReadsPrice: 0.0375,
 		cacheWritesPrice: 1.0,
@@ -43,8 +43,8 @@ export const geminiModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: true,
-		inputPrice: 0.15,
-		outputPrice: 0.6,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
 		cacheReadsPrice: 0.0375,
 		cacheWritesPrice: 1.0,
 	},

packages/types/src/providers/vertex.ts

@@ -11,7 +11,7 @@ export const vertexModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: true,
-		inputPrice: 0.15,
+		inputPrice: 0.3,
 		outputPrice: 3.5,
 		maxThinkingTokens: 24_576,
 		supportsReasoningBudget: true,
@@ -22,15 +22,15 @@ export const vertexModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: true,
-		inputPrice: 0.15,
-		outputPrice: 0.6,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
 	},
 	"gemini-2.5-flash-preview-04-17:thinking": {
 		maxTokens: 65_535,
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: false,
-		inputPrice: 0.15,
+		inputPrice: 0.3,
 		outputPrice: 3.5,
 		maxThinkingTokens: 24_576,
 		supportsReasoningBudget: true,
@@ -41,8 +41,8 @@ export const vertexModels = {
 		contextWindow: 1_048_576,
 		supportsImages: true,
 		supportsPromptCache: false,
-		inputPrice: 0.15,
-		outputPrice: 0.6,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
 	},
 	"gemini-2.5-pro-preview-03-25": {
 		maxTokens: 65_535,