Remove openai-codex fast model variants, they do not work

packages/ai/scripts/generate-models.ts

@@ -1545,18 +1545,6 @@ async function generateModels() {
 			contextWindow: CODEX_CONTEXT,
 			maxTokens: CODEX_MAX_TOKENS,
 		},
-		{
-			id: "gpt-5.4-fast",
-			name: "GPT-5.4 Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: CODEX_BASE_URL,
-			reasoning: true,
-			input: ["text", "image"],
-			cost: { input: 5, output: 30, cacheRead: 0.5, cacheWrite: 0 },
-			contextWindow: CODEX_CONTEXT,
-			maxTokens: CODEX_MAX_TOKENS,
-		},
 		{
 			id: "gpt-5.4-mini",
 			name: "GPT-5.4 mini",
@@ -1569,18 +1557,6 @@ async function generateModels() {
 			contextWindow: CODEX_CONTEXT,
 			maxTokens: CODEX_MAX_TOKENS,
 		},
-		{
-			id: "gpt-5.4-mini-fast",
-			name: "GPT-5.4 mini Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: CODEX_BASE_URL,
-			reasoning: true,
-			input: ["text", "image"],
-			cost: { input: 1.5, output: 9, cacheRead: 0.15, cacheWrite: 0 },
-			contextWindow: CODEX_CONTEXT,
-			maxTokens: CODEX_MAX_TOKENS,
-		},
 		{
 			id: "gpt-5.5",
 			name: "GPT-5.5",
@@ -1593,23 +1569,11 @@ async function generateModels() {
 			contextWindow: CODEX_CONTEXT,
 			maxTokens: CODEX_MAX_TOKENS,
 		},
-		{
-			id: "gpt-5.5-fast",
-			name: "GPT-5.5 Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: CODEX_BASE_URL,
-			reasoning: true,
-			input: ["text", "image"],
-			cost: { input: 12.5, output: 75, cacheRead: 1.25, cacheWrite: 0 },
-			contextWindow: CODEX_CONTEXT,
-			maxTokens: CODEX_MAX_TOKENS,
-		},
 	];
 	allModels.push(...codexModels);
 
 	// Add missing Grok models
-	const missingGrokModels: Model[] = [
+	const missingGrokModels: Model<"openai-completions">[] = [
 		{
 			id: "grok-3",
 			name: "Grok 3",

packages/ai/src/models.generated.ts

@@ -7227,24 +7227,6 @@ export const MODELS = {
 			contextWindow: 272000,
 			maxTokens: 128000,
 		} satisfies Model<"openai-codex-responses">,
-		"gpt-5.4-fast": {
-			id: "gpt-5.4-fast",
-			name: "GPT-5.4 Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: "https://chatgpt.com/backend-api",
-			reasoning: true,
-			thinkingLevelMap: {"xhigh":"xhigh","minimal":"low"},
-			input: ["text", "image"],
-			cost: {
-				input: 5,
-				output: 30,
-				cacheRead: 0.5,
-				cacheWrite: 0,
-			},
-			contextWindow: 272000,
-			maxTokens: 128000,
-		} satisfies Model<"openai-codex-responses">,
 		"gpt-5.4-mini": {
 			id: "gpt-5.4-mini",
 			name: "GPT-5.4 mini",
@@ -7263,24 +7245,6 @@ export const MODELS = {
 			contextWindow: 272000,
 			maxTokens: 128000,
 		} satisfies Model<"openai-codex-responses">,
-		"gpt-5.4-mini-fast": {
-			id: "gpt-5.4-mini-fast",
-			name: "GPT-5.4 mini Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: "https://chatgpt.com/backend-api",
-			reasoning: true,
-			thinkingLevelMap: {"xhigh":"xhigh","minimal":"low"},
-			input: ["text", "image"],
-			cost: {
-				input: 1.5,
-				output: 9,
-				cacheRead: 0.15,
-				cacheWrite: 0,
-			},
-			contextWindow: 272000,
-			maxTokens: 128000,
-		} satisfies Model<"openai-codex-responses">,
 		"gpt-5.5": {
 			id: "gpt-5.5",
 			name: "GPT-5.5",
@@ -7299,24 +7263,6 @@ export const MODELS = {
 			contextWindow: 272000,
 			maxTokens: 128000,
 		} satisfies Model<"openai-codex-responses">,
-		"gpt-5.5-fast": {
-			id: "gpt-5.5-fast",
-			name: "GPT-5.5 Fast",
-			api: "openai-codex-responses",
-			provider: "openai-codex",
-			baseUrl: "https://chatgpt.com/backend-api",
-			reasoning: true,
-			thinkingLevelMap: {"xhigh":"xhigh","minimal":"low"},
-			input: ["text", "image"],
-			cost: {
-				input: 12.5,
-				output: 75,
-				cacheRead: 1.25,
-				cacheWrite: 0,
-			},
-			contextWindow: 272000,
-			maxTokens: 128000,
-		} satisfies Model<"openai-codex-responses">,
 	},
 	"opencode": {
 		"big-pickle": {