model2=gr.Interface.load("huggingface/EleutherAI/gpt-neo-1.3B") and gr.Parallel(model1, model2, model3, title="My First Text Generation", description="Input text and submit").launch()

Please copy the names of language models carefully. In addition, in the parameters for gr.Parallel put the title in "quotes" and the description in "quotes." No need to create additional variables.

app.py

@@ -1,14 +1,8 @@
 import gradio as gr
 from gradio.mix import Parallel
 
-
-
-
-Myfirstvariable="My First Text Generation"
-mylovelysecondvariable="Input text and submit"
-
 model1=gr.Interface.load("huggingface/gpt2")
-model2=gr.Interface.load("huggingface/EleutherAI/gpt-neo-1.38")
+model2=gr.Interface.load("huggingface/EleutherAI/gpt-neo-1.3B")
 model3=gr.Interface.load("huggingace/bigscience/bloom-560m")
 
-gr.Parallel(model1, model2, model3, title=first, desription=secon).launch()
+gr.Parallel(model1, model2, model3, title="My First Text Generation", description="Input text and submit").launch()