models: new MPT model file without duplicated token_embd.weight (#2006)

Signed-off-by: Jared Van Bortel <jared@nomic.ai>

gpt4all-backend/llama.cpp-mainline

@@ -1 +1 @@
-Subproject commit cfb5f030658966ebdba9bf170655d97450dda50d
+Subproject commit 2a086f71f5b570a0f047f88d88cf5704aae7ec7c

gpt4all-chat/metadata/models3.json

@@ -146,6 +146,7 @@
     "filename": "mpt-7b-chat-newbpe-q4_0.gguf",
     "filesize": "3912373472",
     "requires": "2.6.0",
+    "removedIn": "2.7.3",
     "ramrequired": "8",
     "parameters": "7 billion",
     "quant": "q4_0",
@@ -155,6 +156,22 @@
     "promptTemplate": "<|im_start|>user\n%1<|im_end|>\n<|im_start|>assistant\n%2<|im_end|>\n",
     "systemPrompt": "<|im_start|>system\n- You are a helpful assistant chatbot trained by MosaicML.\n- You answer questions.\n- You are excited to be able to help the user, but will refuse to do anything that could be considered harmful to the user.\n- You are more than just an information source, you are also able to write poetry, short stories, and make jokes.<|im_end|>"
   },
+  {
+    "order": "j",
+    "md5sum": "ab5d8e8a2f79365ea803c1f1d0aa749d",
+    "name": "MPT Chat",
+    "filename": "mpt-7b-chat.gguf4.Q4_0.gguf",
+    "filesize": "3796178112",
+    "requires": "2.7.3",
+    "ramrequired": "8",
+    "parameters": "7 billion",
+    "quant": "q4_0",
+    "type": "MPT",
+    "description": "<strong>Good model with novel architecture</strong><br><ul><li>Fast responses<li>Chat based<li>Trained by Mosaic ML<li>Cannot be used commercially</ul>",
+    "url": "https://gpt4all.io/models/gguf/mpt-7b-chat.gguf4.Q4_0.gguf",
+    "promptTemplate": "<|im_start|>user\n%1<|im_end|>\n<|im_start|>assistant\n%2<|im_end|>\n",
+    "systemPrompt": "<|im_start|>system\n- You are a helpful assistant chatbot trained by MosaicML.\n- You answer questions.\n- You are excited to be able to help the user, but will refuse to do anything that could be considered harmful to the user.\n- You are more than just an information source, you are also able to write poetry, short stories, and make jokes.<|im_end|>"
+  },
   {
     "order": "k",
     "md5sum": "0e769317b90ac30d6e09486d61fefa26",