Added modal labs example to documentation (#556)

gpt4all-bindings/python/docs/gpt4all_api.md

@@ -1,4 +1,4 @@
-# GPT4All API
+# GPT4All Python API
 The `GPT4All` provides a universal API to call all GPT4All models and 
 introduces additional helpful functionality such as downloading models.
 

gpt4all-bindings/python/docs/gpt4all_modal.md

@@ -0,0 +1,35 @@
+# GPT4All with Modal Labs
+
+You can easily query any GPT4All model on [Modal Labs](https://modal.com/) infrastructure!
+## Example
+
+```python
+import modal
+
+def download_model():
+    import gpt4all
+    #you can use any model from https://gpt4all.io/models/models.json
+    return gpt4all.GPT4All("ggml-gpt4all-j-v1.3-groovy.bin")
+
+image=modal.Image.debian_slim().pip_install("gpt4all").run_function(download_model)
+
+stub = modal.Stub("gpt4all", image=image)
+
+@stub.cls(keep_warm=1)
+class GPT4All:
+    def __enter__(self):
+        print("Downloading model")
+        self.gptj = download_model()
+        print("Loaded model")
+
+    def generate(self):
+        messages = [{"role": "user", "content": "Name 3 colors"}]
+        completion = self.gptj.chat_completion(messages)
+        print(f"Completion: {completion}")
+
+@stub.local_entrypoint()
+def main():
+    model = GPT4All()
+    for i in range(10):
+            model.generate()
+```

gpt4all-bindings/python/docs/index.md

@@ -1,4 +1,4 @@
-# GPT4All
+# GPT4All with Python
 
 In this package, we introduce Python bindings built around GPT4All's C/C++ model backends.