upgrade tiktoken to support gpt-5, fixed temperature 1.0 for gpt-5

Author: Veikkosuhonen

package-lock.json

@@ -72,7 +72,7 @@
   "dependencies": {
     "@aws-sdk/client-s3": "^3.864.0",
     "@azure/openai": "^1.0.0-beta.11",
-    "@dqbd/tiktoken": "^1.0.16",
+    "@dqbd/tiktoken": "^1.0.22",
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.0",
     "@langchain/community": "^0.3.50",

package.json

@@ -35,6 +35,7 @@ export const validModels = [
   {
     name: 'gpt-5',
     context: 128_000,
+    temperature: 1.0,
   },
   {
     name: 'mock',

src/config.ts

@@ -31,7 +31,12 @@ const getChatModel = (model: string, tools: StructuredTool[], temperature: numbe
           azureOpenAIApiVersion: '2023-05-15',
           azureOpenAIApiDeploymentName: model, // In Azure, always use the acual model name as the deployment name
           azureOpenAIApiInstanceName: AZURE_RESOURCE,
-          temperature,
+          temperature: modelConfig.temperature ?? temperature, // If model config specifies a temperature, use it; otherwise, use the user supplied temperature.
+          reasoning: {
+            effort: 'minimal',
+            summary: null,
+            generate_summary: null,
+          },
         }).bindTools(tools)
 
   return chatModel