diff --git a/server/index.js b/server/index.js
index dae8c48..366e186 100644
--- a/server/index.js
+++ b/server/index.js
@@ -1225,6 +1225,7 @@ app.post("/api/deepseek/chat", requireAuth, async (req, res) => {
         messages: sanitizedMessages,
         temperature,
         max_tokens: clampedMaxTokens,
+        top_p: 0.95,
       }),
     });
 
@@ -1286,6 +1287,7 @@ app.post("/api/deepseek/chat/stream", requireAuth, async (req, res) => {
         messages: sanitizedMessages,
         temperature,
         max_tokens: clampedMaxTokens,
+        top_p: 0.95,
         stream: true,
       }),
     });
diff --git a/src/services/deepseek.ts b/src/services/deepseek.ts
index 5b8ab57..945d5eb 100644
--- a/src/services/deepseek.ts
+++ b/src/services/deepseek.ts
@@ -200,7 +200,7 @@ GENRE: ${story.genre.join(", ")}
 SETTING: ${settingInfo}
 
 IMPORTANT: Respond ONLY in language: ${story.language}. 
-CRITICAL: Use PERFECT grammar and spelling. Double-check every word for typos. No misspellings allowed.
+CRITICAL: Write every word COMPLETELY. No truncated or cut-off words. Perfect grammar and spelling required. Double-check every word for typos.
 
 === PLAYER CHARACTER ===
 Name: ${player?.name || "Hero"}
@@ -256,7 +256,7 @@ RIGHT: **"Я ему не доверяю,"** пробормотала она.
 Descriptions and narration — plain text without any asterisks.
 ${oocRules}
 Respond in language: ${story.language}
-CRITICAL: Use PERFECT grammar and spelling. Double-check every word before writing. No typos or misspellings allowed!
+CRITICAL: Write every word COMPLETELY. No truncated or cut-off words. Perfect grammar and spelling required!
 
 === PLAYER CHARACTER ===
 Name: ${player?.name || "Hero"}
@@ -314,7 +314,7 @@ export function buildDynamicContext(
 • Do NOT ask "What do you do?" — end with atmosphere, not questions
 • Format dialogue: **"text"** (double asterisks = bold)
 • React to player's words explicitly
-• CRITICAL: Use PERFECT grammar and spelling. Double-check every word. No typos or misspellings!
+• CRITICAL: Write every word COMPLETELY. No truncated words. Perfect grammar required!
 • Characters can only be where they logically should be based on their last known location`
       : "";