llm: updates, fixes, refactor, ...

Author: haraldschilly

src/.nvmrc

@@ -1 +1 @@
-lts/hydrogen
+20

src/packages/frontend/account/user-defined-llm.tsx

@@ -265,6 +265,8 @@ export function UserDefinedLLMComponent({ style, on_change }: Props) {
         return "'open-mixtral-8x22b'";
       case "google":
         return "'gemini-2.0-flash'";
+      case "xai":
+        return "'grok-4-1-fast-non-reasoning-8k'";
       default:
         unreachable(service);
         return "'llama3:latest'";

src/packages/frontend/components/language-model-icon.tsx

@@ -101,6 +101,9 @@ export function LanguageModelVendorAvatar(
       case "anthropic":
         return <AnthropicAvatar size={size} style={style} />;
 
+      case "xai":
+        return fallback();
+
       case "user":
         // should never happen, because it is unpacked below
         return fallback();

src/packages/frontend/customize.tsx

@@ -107,6 +107,7 @@ export interface CustomizeState {
   google_vertexai_enabled: boolean;
   mistral_enabled: boolean;
   anthropic_enabled: boolean;
+  xai_enabled: boolean;
   ollama_enabled: boolean;
   custom_openai_enabled: boolean;
   neural_search_enabled: boolean;
@@ -215,6 +216,7 @@ export class CustomizeStore extends Store<CustomizeState> {
       custom_openai: this.get("custom_openai_enabled"),
       mistralai: this.get("mistral_enabled"),
       anthropic: this.get("anthropic_enabled"),
+      xai: this.get("xai_enabled"),
       user: this.get("user_defined_llm"),
     };
   }
@@ -261,7 +263,7 @@ export class CustomizeActions extends Actions<CustomizeState> {
       unlicensed_project_timetravel_limit: undefined,
     });
   };
-  
+
   reload = async () => {
     await loadCustomizeState();
   };

src/packages/frontend/project/context.tsx

@@ -72,6 +72,7 @@ export const emptyProjectContext = {
     mistralai: false,
     anthropic: false,
     custom_openai: false,
+    xai: false,
     user: false,
   },
   flipTabs: [0, () => {}],

src/packages/package.json

@@ -23,8 +23,8 @@
       "undici@<5.28.3": "^5.28.4",
       "postcss@<8.4.31": "^8.4.31",
       "retry-request@<7.0.1": "^7.0.2",
-      "@langchain/core": "^0.3.77",
-      "langchain": "^0.3.34",
+      "@langchain/core": "^1.1.6",
+      "langchain": "^1.2.1",
       "katex@<0.16.9": "^0.16.10",
       "nanoid@<3.3.8": "^3.3.8",
       "node-forge@<=1.3.1": "^1.3.2",