fix: #3152 system prompt should be injected

app/constant.ts

@@ -69,13 +69,20 @@ export const OpenaiPath = {
 export const DEFAULT_INPUT_TEMPLATE = `{{input}}`; // input / time / model / lang
 export const DEFAULT_SYSTEM_TEMPLATE = `
 You are ChatGPT, a large language model trained by OpenAI.
-Knowledge cutoff: {{knowledgeCutoff}}
+Knowledge cutoff: {{cutoff}}
 Current model: {{model}}
 Current time: {{time}}
 `;
 
 export const SUMMARIZE_MODEL = "gpt-3.5-turbo";
 
+export const KnowledgeCutOffDate: Record<string, string> = {
+  default: "2021-09",
+  "gpt-3.5-turbo-1106": "2023-04",
+  "gpt-4-1106-preview": "2023-04",
+  "gpt-4-vision-preview": "2023-04",
+};
+
 export const DEFAULT_MODELS = [
   {
     name: "gpt-4",

app/store/chat.ts

@@ -7,6 +7,7 @@ import { createEmptyMask, Mask } from "./mask";
 import {
   DEFAULT_INPUT_TEMPLATE,
   DEFAULT_SYSTEM_TEMPLATE,
+  KnowledgeCutOffDate,
   StoreKey,
   SUMMARIZE_MODEL,
 } from "../constant";
@@ -116,7 +117,11 @@ function countMessages(msgs: ChatMessage[]) {
 }
 
 function fillTemplateWith(input: string, modelConfig: ModelConfig) {
+  let cutoff =
+    KnowledgeCutOffDate[modelConfig.model] ?? KnowledgeCutOffDate.default;
+
   const vars = {
+    cutoff,
     model: modelConfig.model,
     time: new Date().toLocaleString(),
     lang: getLang(),
@@ -401,26 +406,22 @@ export const useChatStore = createPersistStore(
 
         // system prompts, to get close to OpenAI Web ChatGPT
         const shouldInjectSystemPrompts = modelConfig.enableInjectSystemPrompts;
-        let systemPrompts = shouldInjectSystemPrompts ? [] : [];
-
+        const systemPrompts = shouldInjectSystemPrompts
+          ? [
+              createMessage({
+                role: "system",
+                content: fillTemplateWith("", {
+                  ...modelConfig,
+                  template: DEFAULT_SYSTEM_TEMPLATE,
+                }),
+              }),
+            ]
+          : [];
         if (shouldInjectSystemPrompts) {
-          const model = modelConfig.model;
-          let systemTemplate = DEFAULT_SYSTEM_TEMPLATE;
-
-          if (model === "gpt-4-1106-preview" || model === "gpt-4-vision-preview") {
-            systemTemplate = systemTemplate.replace("{{knowledgeCutoff}}", "2023-04");
-          } else {
-            systemTemplate = systemTemplate.replace("{{knowledgeCutoff}}", "2021-09");
-          }
-
-          const systemPrompt = createMessage({
-            role: "system",
-            content: fillTemplateWith("", {
-              ...modelConfig,
-              template: systemTemplate,
-            }),
-          });
-          console.log("[Global System Prompt] ", systemPrompt.content);
+          console.log(
+            "[Global System Prompt] ",
+            systemPrompts.at(0)?.content ?? "empty",
+          );
         }
 
         // long term memory