Remove deprecated oldModels support from codebase

Eliminated all references to oldModels, including its import, configuration, and usage in model selection logic and API routes. This simplifies model management and removes unnecessary legacy code.

chart/env/prod.yaml

@@ -54,103 +54,15 @@ envVars:
   LOG_LEVEL: "debug"
   NODE_ENV: "prod"
   NODE_LOG_STRUCTURED_DATA: true
-  OLD_MODELS: >
-    [
-      { "name": "bigcode/starcoder" },
-      { "name": "OpenAssistant/oasst-sft-6-llama-30b-xor" },
-      { "name": "HuggingFaceH4/zephyr-7b-alpha" },
-      { "name": "openchat/openchat_3.5" },
-      { "name": "openchat/openchat-3.5-1210" },
-      { "name": "tiiuae/falcon-180B-chat" },
-      { "name": "codellama/CodeLlama-34b-Instruct-hf" },
-      { "name": "google/gemma-7b-it" },
-      { "name": "meta-llama/Llama-2-70b-chat-hf" },
-      { "name": "codellama/CodeLlama-70b-Instruct-hf" },
-      { "name": "openchat/openchat-3.5-0106" },
-      { "name": "meta-llama/Meta-Llama-3-70B-Instruct" },
-      { "name": "meta-llama/Meta-Llama-3.1-405B-Instruct-FP8" },
-      {
-        "name": "CohereForAI/c4ai-command-r-plus-08-2024",
-        "transferTo": "CohereLabs/c4ai-command-r-plus-08-2024"
-      },
-      {
-        "name": "CohereForAI/c4ai-command-r-plus",
-        "transferTo": "CohereLabs/c4ai-command-r-plus-08-2024"
-      },
-      {
-        "name": "01-ai/Yi-1.5-34B-Chat",
-        "transferTo": "CohereLabs/c4ai-command-r-plus-08-2024"
-      },
-      {
-        "name": "mistralai/Mixtral-8x7B-Instruct-v0.1",
-        "transferTo": "mistralai/Mistral-Small-3.1-24B-Instruct-2503"
-      },
-      {
-        "name": "NousResearch/Nous-Hermes-2-Mixtral-8x7B-DPO",
-        "transferTo": "NousResearch/Hermes-3-Llama-3.1-8B"
-      },
-      {
-        "name": "mistralai/Mistral-7B-Instruct-v0.3",
-        "transferTo": "mistralai/Mistral-Small-3.1-24B-Instruct-2503"
-      },
-      {
-        "name": "microsoft/Phi-3-mini-4k-instruct",
-        "transferTo": "microsoft/Phi-4"
-      },
-      {
-        "name": "meta-llama/Meta-Llama-3.1-70B-Instruct",
-        "transferTo": "meta-llama/Llama-3.3-70B-Instruct"
-      },
-      {
-        "name": "Qwen/QwQ-32B-Preview",
-        "transferTo": "Qwen/QwQ-32B"
-      },
-      {
-        "name": "mistralai/Mistral-Nemo-Instruct-2407",
-        "transferTo": "mistralai/Mistral-Small-3.1-24B-Instruct-2503"
-      },
-      {
-        "name": "microsoft/Phi-3.5-mini-instruct",
-        "transferTo": "microsoft/Phi-4"
-      },
-      {
-        "name": "Qwen/Qwen2.5-Coder-32B-Instruct",
-        "transferTo": "Qwen/QwQ-32B"
-      },
-      {
-        "name": "meta-llama/Llama-3.2-11B-Vision-Instruct",
-        "transferTo" : "Qwen/Qwen2.5-VL-32B-Instruct"
-      }
-    ]
   PUBLIC_ORIGIN: "https://huggingface.co"
   PUBLIC_SHARE_PREFIX: "https://hf.co/chat"
-  PUBLIC_ANNOUNCEMENT_BANNERS: >
-    [
-      {
-        "title": "Qwen 3 235B is available!",
-        "linkTitle": "Try it out!",
-        "linkHref": "https://huggingface.co/chat/models/Qwen/Qwen3-235B-A22B"
-      }
-    ]
   PUBLIC_APP_NAME: "HuggingChat"
   PUBLIC_APP_ASSETS: "huggingchat"
-  PUBLIC_APP_COLOR: "yellow"
   PUBLIC_APP_DESCRIPTION: "Making the community's best AI chat models available to everyone."
   PUBLIC_APP_GUEST_MESSAGE: "Sign in with a free Hugging Face account to continue using HuggingChat."
   PUBLIC_APP_DATA_SHARING: 0
   PUBLIC_PLAUSIBLE_SCRIPT_URL: "/js/script.js"
-  TASK_MODEL: >
-        {
-        "name": "NousResearch/Hermes-3-Llama-3.1-8B",
-        "unlisted": true,
-        "endpoints": [{"type" : "inference-client"}],
-        "parameters": {
-          "temperature": 0.1,
-          "max_new_tokens": 256
-        }
-        }
-
-
+  
   HF_ORG_ADMIN: '644171cfbd0c97265298aa99'
   HF_ORG_EARLY_ACCESS: '5e67bd5b1009063689407478'
 infisical:

src/lib/server/api/routes/groups/models.ts

@@ -70,12 +70,7 @@ export const modelGroup = new Elysia().group("/models", (app) =>
 			}
 		})
 		.get("/old", async () => {
-			try {
-				const { oldModels } = await import("$lib/server/models");
-				return oldModels satisfies GETOldModelsResponse;
-			} catch (e) {
-				return [] as GETOldModelsResponse;
-			}
+			return [] as GETOldModelsResponse;
 		})
 		.group("/:namespace/:model?", (app) =>
 			app

src/lib/server/config.ts

@@ -151,7 +151,7 @@ export const ready = (async () => {
 	}
 })();
 
-type ExtraConfigKeys = "HF_TOKEN" | "OLD_MODELS" | "ENABLE_ASSISTANTS";
+type ExtraConfigKeys = "HF_TOKEN" | "ENABLE_ASSISTANTS";
 
 type ConfigProxy = ConfigManager & { [K in ConfigKey | ExtraConfigKeys]: string };
 

src/lib/server/models.ts

@@ -340,21 +340,6 @@ export const validModelIdSchema = z.enum(models.map((m) => m.id) as [string, ...
 
 export const defaultModel = models[0];
 
-// Models that have been deprecated
-export const oldModels = config.OLD_MODELS
-	? z
-			.array(
-				z.object({
-					id: z.string().optional(),
-					name: z.string().min(1),
-					displayName: z.string().min(1).optional(),
-					transferTo: validModelIdSchema.optional(),
-				})
-			)
-			.parse(JSON5.parse(sanitizeJSONEnv(config.OLD_MODELS, "[]")))
-			.map((m) => ({ ...m, id: m.id || m.name, displayName: m.displayName || m.name }))
-	: [];
-
 export const validateModel = (_models: BackendModel[]) => {
 	// Zod enum function requires 2 parameters
 	return z.enum([_models[0].id, ..._models.slice(1).map((m) => m.id)]);

src/lib/utils/models.ts

@@ -2,18 +2,12 @@ import type { Model } from "$lib/types/Model";
 
 export const findCurrentModel = (
 	models: Model[],
-	oldModels: { id: string; transferTo?: string }[] = [],
+	_oldModels: { id: string; transferTo?: string }[] = [],
 	id?: string
 ): Model => {
 	if (id) {
 		const direct = models.find((m) => m.id === id);
 		if (direct) return direct;
-
-		const legacy = oldModels.find((m) => m.id === id);
-		if (legacy?.transferTo) {
-			const mapped = models.find((m) => m.id === legacy.transferTo);
-			if (mapped) return mapped;
-		}
 	}
 
 	return models[0];

src/routes/+layout.ts

@@ -8,11 +8,10 @@ export const load = async ({ depends, fetch, url }) => {
 
 	const client = useAPIClient({ fetch, origin: url.origin });
 
-	const [settings, models, oldModels, user, publicConfig, featureFlags, conversationsData] =
+	const [settings, models, user, publicConfig, featureFlags, conversationsData] =
 		await Promise.all([
 			client.user.settings.get().then(handleResponse),
 			client.models.get().then(handleResponse),
-			client.models.old.get().then(handleResponse),
 			client.user.get().then(handleResponse),
 			client["public-config"].get().then(handleResponse),
 			client["feature-flags"].get().then(handleResponse),
@@ -39,7 +38,7 @@ export const load = async ({ depends, fetch, url }) => {
 		nConversations,
 		conversations,
 		models,
-		oldModels,
+		oldModels: [],
 		user,
 		settings: {
 			...settings,