use gpt-4o-mini (langchain-ai#357)

MODIFY.md

@@ -72,10 +72,11 @@ The LLM is used inside the `/chat` endpoint for generating the final answer, and
 
 Without any modification, we offer a few LLM providers out of the box:
 
-- `gpt-3.5-turbo-0125` by OpenAI
+- `gpt-4o-mini-2024-07-18` by OpenAI
 - `claude-3-haiku-20240307` by Anthropic
 - `mixtral-8x7b` by Fireworks
 - `gemini-pro` by Google
+- `llama3-70b-8192` by Groq
 - `command` by Cohere
 
 These are all located at the bottom of the [`./backend/chain.py`](./backend/chain.py) file. You have a few options for modifying this:
@@ -89,7 +90,7 @@ First, I'll demonstrate how to replace all options with a single provider, as it
 
 ```python
 llm = ChatOpenAI(
-    model="gpt-3.5-turbo-0125",
+    model="gpt-4o-mini-2024-07-18",
     streaming=True,
     temperature=0,
 ).configurable_alternatives(

backend/graph.py

@@ -100,7 +100,7 @@
 Standalone Question:"""
 
 
-OPENAI_MODEL_KEY = "openai_gpt_3_5_turbo"
+OPENAI_MODEL_KEY = "openai_gpt_4o_mini"
 ANTHROPIC_MODEL_KEY = "anthropic_claude_3_haiku"
 FIREWORKS_MIXTRAL_MODEL_KEY = "fireworks_mixtral"
 GOOGLE_MODEL_KEY = "google_gemini_pro"
@@ -134,7 +134,7 @@ class AgentState(TypedDict):
     feedback_urls: dict[str, list[str]]
 
 
-gpt_3_5 = ChatOpenAI(model="gpt-3.5-turbo-0125", temperature=0, streaming=True)
+gpt_4o_mini = ChatOpenAI(model="gpt-4o-mini-2024-07-18", temperature=0, streaming=True)
 claude_3_haiku = ChatAnthropic(
     model="claude-3-haiku-20240307",
     temperature=0,
@@ -164,7 +164,7 @@ class AgentState(TypedDict):
     temperature=0,
     groq_api_key=os.environ.get("GROQ_API_KEY", "not_provided"),
 )
-llm = gpt_3_5.configurable_alternatives(
+llm = gpt_4o_mini.configurable_alternatives(
     # This gives this field an id
     # When configuring the end runnable, we can then use this id to configure this field
     ConfigurableField(id="model_name"),
@@ -178,7 +178,7 @@ class AgentState(TypedDict):
     },
 ).with_fallbacks(
     [
-        gpt_3_5,
+        gpt_4o_mini,
         claude_3_haiku,
         fireworks_mixtral,
         gemini_pro,

frontend/app/components/ChatWindow.tsx

@@ -32,7 +32,7 @@ import { useLangGraphClient } from "../hooks/useLangGraphClient";
 import { useStreamState } from "../hooks/useStreamState";
 import { useLocalStorage } from "../hooks/useLocalStorage";
 
-const MODEL_TYPES = ["openai_gpt_3_5_turbo", "anthropic_claude_3_haiku"];
+const MODEL_TYPES = ["openai_gpt_4o_mini", "anthropic_claude_3_haiku"];
 
 const defaultLlmValue =
   MODEL_TYPES[Math.floor(Math.random() * MODEL_TYPES.length)];
@@ -59,7 +59,7 @@ export function ChatWindow() {
   const [input, setInput] = useState("");
   const [isLoading, setIsLoading] = useState(false);
   const [llm, setLlm] = useState(
-    searchParams.get("llm") ?? "openai_gpt_3_5_turbo",
+    searchParams.get("llm") ?? "openai_gpt_4o_mini",
   );
   const [llmIsLoading, setLlmIsLoading] = useState(true);
   const [assistantId, setAssistantId] = useState<string>("");
@@ -316,8 +316,8 @@ export function ChatWindow() {
                         }}
                         width={"240px"}
                       >
-                        <option value="openai_gpt_3_5_turbo">
-                          GPT-3.5-Turbo
+                        <option value="openai_gpt_4o_mini">
+                          GPT-4o Mini
                         </option>
                         <option value="anthropic_claude_3_haiku">
                           Claude 3 Haiku