diff --git a/dist/index.js b/dist/index.js
index c2d30b5..c53be8a 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2318,11 +2318,7 @@ class Bot {
                     // eslint-disable-next-line camelcase
                     anthropic_version: 'bedrock-2023-05-31',
                     // eslint-disable-next-line camelcase
-                    max_tokens: 4000,
-                    // eslint-disable-next-line camelcase
-                    top_p: 0.9,
-                    // eslint-disable-next-line camelcase
-                    top_k: 250,
+                    max_tokens: 4096,
                     temperature: 0,
                     messages: [
                         {
@@ -5053,8 +5049,9 @@ class TokenLimits {
             this.responseTokens = 3000;
         }
         else {
-            this.maxTokens = 4000;
-            this.responseTokens = 1000;
+            // The latest models usually have this level of limits.
+            this.maxTokens = 200_000;
+            this.responseTokens = 4096;
         }
         // provide some margin for the request tokens
         this.requestTokens = this.maxTokens - this.responseTokens - 100;
diff --git a/src/bot.ts b/src/bot.ts
index bf8980f..2c90c10 100644
--- a/src/bot.ts
+++ b/src/bot.ts
@@ -64,11 +64,7 @@ export class Bot {
                 // eslint-disable-next-line camelcase
                 anthropic_version: 'bedrock-2023-05-31',
                 // eslint-disable-next-line camelcase
-                max_tokens: 4000,
-                // eslint-disable-next-line camelcase
-                top_p: 0.9,
-                // eslint-disable-next-line camelcase
-                top_k: 250,
+                max_tokens: 4096,
                 temperature: 0,
                 messages: [
                   {
diff --git a/src/limits.ts b/src/limits.ts
index 04e738e..279d783 100644
--- a/src/limits.ts
+++ b/src/limits.ts
@@ -11,8 +11,9 @@ export class TokenLimits {
       this.maxTokens = 100_000
       this.responseTokens = 3000
     } else {
-      this.maxTokens = 4000
-      this.responseTokens = 1000
+      // The latest models usually have this level of limits.
+      this.maxTokens = 200_000
+      this.responseTokens = 4096
     }
     // provide some margin for the request tokens
     this.requestTokens = this.maxTokens - this.responseTokens - 100