diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index 83f3672a..0e8f5e40 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Fixed
 
+- Fixed generated OpenAI-compatible DeepSeek V4 models to carry the provider-specific reasoning effort mapping outside the direct DeepSeek provider ([#3940](https://github.com/badlogic/pi-mono/issues/3940)).
 - Fixed DeepSeek V4 Flash and V4 Pro pricing metadata to match current official rates ([#3910](https://github.com/badlogic/pi-mono/issues/3910)).
 - Fixed DeepSeek prompt cache hits to be tracked from `prompt_cache_hit_tokens` in OpenAI-compatible usage responses ([#3880](https://github.com/badlogic/pi-mono/issues/3880)).
 
diff --git a/packages/ai/scripts/generate-models.ts b/packages/ai/scripts/generate-models.ts
index efa9f8e0..b7205881 100644
--- a/packages/ai/scripts/generate-models.ts
+++ b/packages/ai/scripts/generate-models.ts
@@ -1095,7 +1095,13 @@ async function generateModels() {
 		if (candidate.api === "openai-completions" && candidate.id.includes("deepseek-v4")) {
 			candidate.compat = {
 				...candidate.compat,
-				requiresReasoningContentOnAssistantMessages: true,
+				...(candidate.provider === "openrouter"
+					? {
+							requiresReasoningContentOnAssistantMessages:
+								deepseekCompat.requiresReasoningContentOnAssistantMessages,
+							reasoningEffortMap: deepseekCompat.reasoningEffortMap,
+						}
+					: deepseekCompat),
 			};
 		}
 	}
diff --git a/packages/ai/src/models.generated.ts b/packages/ai/src/models.generated.ts
index 279b0f13..783a9487 100644
--- a/packages/ai/src/models.generated.ts
+++ b/packages/ai/src/models.generated.ts
@@ -7536,7 +7536,7 @@ export const MODELS = {
 			api: "openai-completions",
 			provider: "opencode-go",
 			baseUrl: "https://opencode.ai/zen/go/v1",
-			compat: {"requiresReasoningContentOnAssistantMessages":true},
+			compat: {"requiresReasoningContentOnAssistantMessages":true,"thinkingFormat":"deepseek","reasoningEffortMap":{"minimal":"high","low":"high","medium":"high","high":"high","xhigh":"max"}},
 			reasoning: true,
 			input: ["text"],
 			cost: {
@@ -7554,7 +7554,7 @@ export const MODELS = {
 			api: "openai-completions",
 			provider: "opencode-go",
 			baseUrl: "https://opencode.ai/zen/go/v1",
-			compat: {"requiresReasoningContentOnAssistantMessages":true},
+			compat: {"requiresReasoningContentOnAssistantMessages":true,"thinkingFormat":"deepseek","reasoningEffortMap":{"minimal":"high","low":"high","medium":"high","high":"high","xhigh":"max"}},
 			reasoning: true,
 			input: ["text"],
 			cost: {
@@ -8509,7 +8509,7 @@ export const MODELS = {
 			api: "openai-completions",
 			provider: "openrouter",
 			baseUrl: "https://openrouter.ai/api/v1",
-			compat: {"requiresReasoningContentOnAssistantMessages":true},
+			compat: {"requiresReasoningContentOnAssistantMessages":true,"reasoningEffortMap":{"minimal":"high","low":"high","medium":"high","high":"high","xhigh":"max"}},
 			reasoning: true,
 			input: ["text"],
 			cost: {
@@ -8527,7 +8527,7 @@ export const MODELS = {
 			api: "openai-completions",
 			provider: "openrouter",
 			baseUrl: "https://openrouter.ai/api/v1",
-			compat: {"requiresReasoningContentOnAssistantMessages":true},
+			compat: {"requiresReasoningContentOnAssistantMessages":true,"reasoningEffortMap":{"minimal":"high","low":"high","medium":"high","high":"high","xhigh":"max"}},
 			reasoning: true,
 			input: ["text"],
 			cost: {