Update OpenAI model max_tokens and cost map values

Author: jelveh

src/backend/src/modules/puterai/OpenAiCompletionService/models.mjs

@@ -19,7 +19,7 @@ export const OPEN_AI_MODELS = [
             input: 125,
             output: 1000,
         },
-        max_tokens: 400000,
+        max_tokens: 128000,
     },
     {
         id: 'gpt-5.1-codex-mini',
@@ -29,7 +29,7 @@ export const OPEN_AI_MODELS = [
             input: 25,
             output: 200,
         },
-        max_tokens: 400000,
+        max_tokens: 128000,
     },
     {
         id: 'gpt-5.1-chat-latest',
@@ -39,7 +39,7 @@ export const OPEN_AI_MODELS = [
             input: 125,
             output: 1000,
         },
-        max_tokens: 400000,
+        max_tokens: 16384,
     },
     {
         id: 'gpt-5-2025-08-07',

src/backend/src/services/MeteringService/costMaps/openAiCostMap.ts

@@ -24,7 +24,7 @@ export const OPENAI_COST_MAP = {
     'openai:gpt-5.1:cached_tokens': 13,
     'openai:gpt-5.1:completion_tokens': 1000,
     'openai:gpt-5.1-codex:prompt_tokens': 125,
-    'openai:gpt-5.1-codex:cached_tokens': 12.5,
+    'openai:gpt-5.1-codex:cached_tokens': 13,
     'openai:gpt-5.1-codex:completion_tokens': 1000,
     'openai:gpt-5.1-codex-mini:prompt_tokens': 25,
     'openai:gpt-5.1-codex-mini:cached_tokens': 3,