diff --git a/src/providers/bedrock/chatComplete.ts b/src/providers/bedrock/chatComplete.ts
index 5605ca5a0..bb8d0bc31 100644
--- a/src/providers/bedrock/chatComplete.ts
+++ b/src/providers/bedrock/chatComplete.ts
@@ -11,6 +11,16 @@ import {
 } from '../utils';
 import { BedrockErrorResponse } from './embed';
 
+interface BedrockChatCompletionsParams extends Params {
+  additionalModelRequestFields?: Record<string, any>;
+  additionalModelResponseFieldPaths?: string[];
+  guardrailConfig?: {
+    guardrailIdentifier: string;
+    guardrailVersion: string;
+    trace?: string;
+  };
+}
+
 const getMessageTextContentArray = (message: Message): { text: string }[] => {
   if (message.content && typeof message.content === 'object') {
     return message.content
@@ -75,7 +85,7 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
     {
       param: 'messages',
       required: true,
-      transform: (params: Params) => {
+      transform: (params: BedrockChatCompletionsParams) => {
         if (!params.messages) return [];
         return params.messages.map((msg) => {
           if (msg.role === 'system') return;
@@ -89,7 +99,7 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
     {
       param: 'system',
       required: false,
-      transform: (params: Params) => {
+      transform: (params: BedrockChatCompletionsParams) => {
         if (!params.messages) return;
         const systemMessages = params.messages.reduce(
           (acc: { text: string }[], msg) => {
@@ -105,7 +115,7 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
     },
     {
       param: 'inferenceConfig',
-      transform: (params: Params) => {
+      transform: (params: BedrockChatCompletionsParams) => {
         return {
           maxTokens: params.max_tokens || params.max_completion_tokens,
           stopSequences:
@@ -117,16 +127,17 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
     },
     {
       param: 'additionalModelRequestFields',
-      transform: (params: Params) => {
+      transform: (params: BedrockChatCompletionsParams) => {
         return {
           topK: params.top_k,
+          ...params.additionalModelRequestFields,
         };
       },
     },
   ],
   tools: {
     param: 'toolConfig',
-    transform: (params: Params) => {
+    transform: (params: BedrockChatCompletionsParams) => {
       const toolConfig = {
         tools: params.tools?.map((tool) => {
           if (!tool.function) return;
@@ -139,28 +150,37 @@ export const BedrockConverseChatCompleteConfig: ProviderConfig = {
           };
         }),
       };
+      let toolChoice = undefined;
       if (params.tool_choice) {
         if (typeof params.tool_choice === 'object') {
-          return {
+          toolChoice = {
             tool: {
               name: params.tool_choice.function.name,
             },
           };
-        }
-        switch (params.tool_choice) {
-          case 'required':
-            return {
+        } else if (typeof params.tool_choice === 'string') {
+          if (params.tool_choice === 'required') {
+            toolChoice = {
               any: {},
             };
-          case 'auto':
-            return {
+          } else if (params.tool_choice === 'auto') {
+            toolChoice = {
               auto: {},
             };
+          }
         }
       }
-      return toolConfig;
+      return { ...toolConfig, toolChoice };
     },
   },
+  guardrailConfig: {
+    param: 'guardrailConfig',
+    required: false,
+  },
+  additionalModelResponseFieldPaths: {
+    param: 'additionalModelResponseFieldPaths',
+    required: false,
+  },
 };
 
 interface BedrockChatCompletionResponse {