diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index c5b27a08..57a25241 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Fixed OpenAI GPT-5.5 generated metadata to omit unsupported minimal thinking ([#5243](https://github.com/earendil-works/pi/issues/5243)).
+
 ## [0.78.0] - 2026-05-29
 
 ### Breaking Changes
diff --git a/packages/ai/scripts/generate-models.ts b/packages/ai/scripts/generate-models.ts
index 3875763c..50df88f2 100644
--- a/packages/ai/scripts/generate-models.ts
+++ b/packages/ai/scripts/generate-models.ts
@@ -232,6 +232,9 @@ function applyThinkingLevelMetadata(model: Model<any>): void {
 	if (supportsOpenAiXhigh(model.id)) {
 		mergeThinkingLevelMap(model, { xhigh: "xhigh" });
 	}
+	if (model.provider === "openai" && model.id === "gpt-5.5") {
+		mergeThinkingLevelMap(model, { minimal: null });
+	}
 	if (model.id.endsWith("gpt-5.5-pro")) {
 		mergeThinkingLevelMap(model, { off: null, minimal: null, low: null });
 	}
diff --git a/packages/ai/src/models.generated.ts b/packages/ai/src/models.generated.ts
index c28dc1a4..c5bd76e5 100644
--- a/packages/ai/src/models.generated.ts
+++ b/packages/ai/src/models.generated.ts
@@ -2990,6 +2990,25 @@ export const MODELS = {
 			contextWindow: 1000000,
 			maxTokens: 128000,
 		} satisfies Model<"anthropic-messages">,
+		"claude-opus-4-8": {
+			id: "claude-opus-4-8",
+			name: "Claude Opus 4.8",
+			api: "anthropic-messages",
+			provider: "cloudflare-ai-gateway",
+			baseUrl: "https://gateway.ai.cloudflare.com/v1/{CLOUDFLARE_ACCOUNT_ID}/{CLOUDFLARE_GATEWAY_ID}/anthropic",
+			compat: {"forceAdaptiveThinking":true},
+			reasoning: true,
+			thinkingLevelMap: {"xhigh":"xhigh"},
+			input: ["text", "image"],
+			cost: {
+				input: 5,
+				output: 25,
+				cacheRead: 0.5,
+				cacheWrite: 6.25,
+			},
+			contextWindow: 1000000,
+			maxTokens: 128000,
+		} satisfies Model<"anthropic-messages">,
 		"claude-sonnet-4": {
 			id: "claude-sonnet-4",
 			name: "Claude Sonnet 4 (latest)",
@@ -3485,24 +3504,6 @@ export const MODELS = {
 			contextWindow: 128000,
 			maxTokens: 128000,
 		} satisfies Model<"openai-completions">,
-		"@cf/moonshotai/kimi-k2.5": {
-			id: "@cf/moonshotai/kimi-k2.5",
-			name: "Kimi K2.5",
-			api: "openai-completions",
-			provider: "cloudflare-workers-ai",
-			baseUrl: "https://api.cloudflare.com/client/v4/accounts/{CLOUDFLARE_ACCOUNT_ID}/ai/v1",
-			compat: {"sendSessionAffinityHeaders":true},
-			reasoning: true,
-			input: ["text", "image"],
-			cost: {
-				input: 0.6,
-				output: 3,
-				cacheRead: 0.1,
-				cacheWrite: 0,
-			},
-			contextWindow: 256000,
-			maxTokens: 256000,
-		} satisfies Model<"openai-completions">,
 		"@cf/moonshotai/kimi-k2.6": {
 			id: "@cf/moonshotai/kimi-k2.6",
 			name: "Kimi K2.6",
@@ -6908,7 +6909,7 @@ export const MODELS = {
 			provider: "openai",
 			baseUrl: "https://api.openai.com/v1",
 			reasoning: true,
-			thinkingLevelMap: {"off":"none","xhigh":"xhigh"},
+			thinkingLevelMap: {"off":"none","xhigh":"xhigh","minimal":null},
 			input: ["text", "image"],
 			cost: {
 				input: 5,
@@ -7362,6 +7363,25 @@ export const MODELS = {
 			contextWindow: 1000000,
 			maxTokens: 64000,
 		} satisfies Model<"anthropic-messages">,
+		"deepseek-v4-flash": {
+			id: "deepseek-v4-flash",
+			name: "DeepSeek V4 Flash",
+			api: "openai-completions",
+			provider: "opencode",
+			baseUrl: "https://opencode.ai/zen/v1",
+			compat: {"requiresReasoningContentOnAssistantMessages":true,"thinkingFormat":"deepseek"},
+			reasoning: true,
+			thinkingLevelMap: {"minimal":null,"low":null,"medium":null,"high":"high","xhigh":"max"},
+			input: ["text"],
+			cost: {
+				input: 0.14,
+				output: 0.28,
+				cacheRead: 0.03,
+				cacheWrite: 0,
+			},
+			contextWindow: 1000000,
+			maxTokens: 384000,
+		} satisfies Model<"openai-completions">,
 		"deepseek-v4-flash-free": {
 			id: "deepseek-v4-flash-free",
 			name: "DeepSeek V4 Flash Free",
@@ -7825,8 +7845,8 @@ export const MODELS = {
 				cacheRead: 0,
 				cacheWrite: 0,
 			},
-			contextWindow: 1000000,
-			maxTokens: 128000,
+			contextWindow: 200000,
+			maxTokens: 32000,
 		} satisfies Model<"openai-completions">,
 		"minimax-m2.5": {
 			id: "minimax-m2.5",
@@ -8833,25 +8853,6 @@ export const MODELS = {
 			contextWindow: 1048576,
 			maxTokens: 131072,
 		} satisfies Model<"openai-completions">,
-		"deepseek/deepseek-v4-flash:free": {
-			id: "deepseek/deepseek-v4-flash:free",
-			name: "DeepSeek: DeepSeek V4 Flash (free)",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			compat: {"requiresReasoningContentOnAssistantMessages":true},
-			reasoning: true,
-			thinkingLevelMap: {"minimal":null,"low":null,"medium":null,"high":"high","xhigh":"xhigh"},
-			input: ["text"],
-			cost: {
-				input: 0,
-				output: 0,
-				cacheRead: 0,
-				cacheWrite: 0,
-			},
-			contextWindow: 1048576,
-			maxTokens: 384000,
-		} satisfies Model<"openai-completions">,
 		"deepseek/deepseek-v4-pro": {
 			id: "deepseek/deepseek-v4-pro",
 			name: "DeepSeek: DeepSeek V4 Pro",
@@ -9306,9 +9307,9 @@ export const MODELS = {
 			reasoning: true,
 			input: ["text"],
 			cost: {
-				input: 0.075,
-				output: 0.625,
-				cacheRead: 0.015,
+				input: 0.3,
+				output: 2.5,
+				cacheRead: 0.06,
 				cacheWrite: 0,
 			},
 			contextWindow: 262144,
@@ -9552,40 +9553,6 @@ export const MODELS = {
 			contextWindow: 262144,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
-		"mistralai/devstral-medium": {
-			id: "mistralai/devstral-medium",
-			name: "Mistral: Devstral Medium",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 0.39999999999999997,
-				output: 2,
-				cacheRead: 0.04,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
-		"mistralai/devstral-small": {
-			id: "mistralai/devstral-small",
-			name: "Mistral: Devstral Small 1.1",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 0.09999999999999999,
-				output: 0.3,
-				cacheRead: 0.01,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
 		"mistralai/ministral-14b-2512": {
 			id: "mistralai/ministral-14b-2512",
 			name: "Mistral: Ministral 3 14B 2512",
@@ -9671,23 +9638,6 @@ export const MODELS = {
 			contextWindow: 131072,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
-		"mistralai/mistral-large-2411": {
-			id: "mistralai/mistral-large-2411",
-			name: "Mistral Large 2411",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text"],
-			cost: {
-				input: 2,
-				output: 6,
-				cacheRead: 0.19999999999999998,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
 		"mistralai/mistral-large-2512": {
 			id: "mistralai/mistral-large-2512",
 			name: "Mistral: Mistral Large 3 2512",
@@ -9841,23 +9791,6 @@ export const MODELS = {
 			contextWindow: 65536,
 			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
-		"mistralai/pixtral-large-2411": {
-			id: "mistralai/pixtral-large-2411",
-			name: "Mistral: Pixtral Large 2411",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: false,
-			input: ["text", "image"],
-			cost: {
-				input: 2,
-				output: 6,
-				cacheRead: 0.19999999999999998,
-				cacheWrite: 0,
-			},
-			contextWindow: 131072,
-			maxTokens: 4096,
-		} satisfies Model<"openai-completions">,
 		"mistralai/voxtral-small-24b-2507": {
 			id: "mistralai/voxtral-small-24b-2507",
 			name: "Mistral: Voxtral Small 24B 2507",
@@ -12201,40 +12134,6 @@ export const MODELS = {
 			contextWindow: 262144,
 			maxTokens: 65536,
 		} satisfies Model<"openai-completions">,
-		"xiaomi/mimo-v2-omni": {
-			id: "xiaomi/mimo-v2-omni",
-			name: "Xiaomi: MiMo-V2-Omni",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: true,
-			input: ["text", "image"],
-			cost: {
-				input: 0.39999999999999997,
-				output: 2,
-				cacheRead: 0.08,
-				cacheWrite: 0,
-			},
-			contextWindow: 262144,
-			maxTokens: 65536,
-		} satisfies Model<"openai-completions">,
-		"xiaomi/mimo-v2-pro": {
-			id: "xiaomi/mimo-v2-pro",
-			name: "Xiaomi: MiMo-V2-Pro",
-			api: "openai-completions",
-			provider: "openrouter",
-			baseUrl: "https://openrouter.ai/api/v1",
-			reasoning: true,
-			input: ["text"],
-			cost: {
-				input: 1,
-				output: 3,
-				cacheRead: 0.19999999999999998,
-				cacheWrite: 0,
-			},
-			contextWindow: 1048576,
-			maxTokens: 131072,
-		} satisfies Model<"openai-completions">,
 		"xiaomi/mimo-v2.5": {
 			id: "xiaomi/mimo-v2.5",
 			name: "Xiaomi: MiMo-V2.5",
@@ -13597,17 +13496,17 @@ export const MODELS = {
 			reasoning: false,
 			input: ["text"],
 			cost: {
-				input: 0.77,
-				output: 0.77,
-				cacheRead: 0,
+				input: 0.27,
+				output: 1.12,
+				cacheRead: 0.135,
 				cacheWrite: 0,
 			},
 			contextWindow: 163840,
-			maxTokens: 16384,
+			maxTokens: 163840,
 		} satisfies Model<"anthropic-messages">,
 		"deepseek/deepseek-v3.1": {
 			id: "deepseek/deepseek-v3.1",
-			name: "DeepSeek-V3.1",
+			name: "DeepSeek V3.1",
 			api: "anthropic-messages",
 			provider: "vercel-ai-gateway",
 			baseUrl: "https://ai-gateway.vercel.sh",