diff --git a/api/core/model_runtime/model_providers/vertex_ai/llm/gemini-2.0-flash-001.yaml b/api/core/model_runtime/model_providers/vertex_ai/llm/gemini-2.0-flash-001.yaml
index bef7ca5eef..494f5aa68e 100644
--- a/api/core/model_runtime/model_providers/vertex_ai/llm/gemini-2.0-flash-001.yaml
+++ b/api/core/model_runtime/model_providers/vertex_ai/llm/gemini-2.0-flash-001.yaml
@@ -5,11 +5,6 @@ model_type: llm
 features:
   - agent-thought
   - vision
-  - tool-call
-  - stream-tool-call
-  - document
-  - video
-  - audio
 model_properties:
   mode: chat
   context_size: 1048576
@@ -20,20 +15,21 @@ parameter_rules:
     use_template: top_p
   - name: top_k
     label:
-      zh_Hans: 取样数量
       en_US: Top k
     type: int
     help:
-      zh_Hans: 仅从每个后续标记的前 K 个选项中采样。
       en_US: Only sample from the top K options for each subsequent token.
     required: false
+  - name: presence_penalty
+    use_template: presence_penalty
+  - name: frequency_penalty
+    use_template: frequency_penalty
   - name: max_output_tokens
     use_template: max_tokens
+    required: true
     default: 8192
     min: 1
     max: 8192
-  - name: json_schema
-    use_template: json_schema
 pricing:
   input: '0.00'
   output: '0.00'
diff --git a/web/app/components/base/chat/utils.ts b/web/app/components/base/chat/utils.ts
index ce7a7c09b3..4539e88d0e 100644
--- a/web/app/components/base/chat/utils.ts
+++ b/web/app/components/base/chat/utils.ts
@@ -1,6 +1,8 @@
 import { UUID_NIL } from './constants'
 import type { IChatItem } from './chat/type'
 import type { ChatItem, ChatItemInTree } from './types'
+import { addFileInfos, sortAgentSorts } from '../../tools/utils'
+import { getProcessedFilesFromResponse } from '../file-uploader/utils'
 
 async function decodeBase64AndDecompress(base64String: string) {
   const binaryString = atob(base64String)
@@ -19,6 +21,60 @@ function getProcessedInputsFromUrlParams(): Record<string, any> {
   return inputs
 }
 
+function appendQAToChatList(chatList: ChatItem[], item: any) {
+  // we append answer first and then question since will reverse the whole chatList later
+  const answerFiles = item.message_files?.filter((file: any) => file.belongs_to === 'assistant') || []
+  chatList.push({
+    id: item.id,
+    content: item.answer,
+    agent_thoughts: addFileInfos(item.agent_thoughts ? sortAgentSorts(item.agent_thoughts) : item.agent_thoughts, item.message_files),
+    feedback: item.feedback,
+    isAnswer: true,
+    citation: item.retriever_resources,
+    message_files: getProcessedFilesFromResponse(answerFiles.map((item: any) => ({ ...item, related_id: item.id }))),
+  })
+  const questionFiles = item.message_files?.filter((file: any) => file.belongs_to === 'user') || []
+  chatList.push({
+    id: `question-${item.id}`,
+    content: item.query,
+    isAnswer: false,
+    message_files: getProcessedFilesFromResponse(questionFiles.map((item: any) => ({ ...item, related_id: item.id }))),
+  })
+}
+
+/**
+ * Computes the latest thread messages from all messages of the conversation.
+ * Same logic as backend codebase `api/core/prompt/utils/extract_thread_messages.py`
+ *
+ * @param fetchedMessages - The history chat list data from the backend, sorted by created_at in descending order. This includes all flattened history messages of the conversation.
+ * @returns An array of ChatItems representing the latest thread.
+ */
+
+
+function getPrevChatList(fetchedMessages: any[]) {
+  const ret: ChatItem[] = []
+  let nextMessageId = null
+
+  for (const item of fetchedMessages) {
+    if (!item.parent_message_id) {
+      appendQAToChatList(ret, item)
+      break
+    }
+
+    if (!nextMessageId) {
+      appendQAToChatList(ret, item)
+      nextMessageId = item.parent_message_id
+    }
+    else {
+      if (item.id === nextMessageId || nextMessageId === UUID_NIL) {
+        appendQAToChatList(ret, item)
+        nextMessageId = item.parent_message_id
+      }
+    }
+  }
+  return ret.reverse()
+}
+
 function isValidGeneratedAnswer(item?: ChatItem | ChatItemInTree): boolean {
   return !!item && item.isAnswer && !item.id.startsWith('answer-placeholder-') && !item.isOpeningStatement
 }
@@ -164,6 +220,7 @@ function getThreadMessages(tree: ChatItemInTree[], targetMessageId?: string): Ch
 export {
   getProcessedInputsFromUrlParams,
   isValidGeneratedAnswer,
+  getPrevChatList,
   getLastAnswer,
   buildChatItemTree,
   getThreadMessages,