GPT3's DaVinci 3 vs 2 Models – Once Upon an Algorithm

Recently OpenAI has released a new model version in GPT3, Davinci-3. This model greatly improves on the formerly most powerful model, Davinci-2. However it also has some oddities that are worth knowing.

You can select Davinci-3 in the Model drop down menu on the right side of the Playground web interface.

Davinci-2 vs. Davinci-3 selection in GPT3 playground

Poetry and the Concept of Rhyming

First, the concept of rhyming is much more advanced in the Davinci-3 model, with every couplet having a rhyming pair. The Davinci-2 model grabs many words that might structurally make sense to rhyme such as ‘head’ and ‘asleep.’ The model hasn’t quite grasped the groupings for rhymes yet in Davinci-2.

The below poem examples show a few things about the differences between Davinci-2 and Davinci-3. For a GPT3 poem with Stable Diffusion illustration, check out Goodnight Poem.

Example Prompt 1: Write a rhyming poem about a girl going to bed.

Once upon a time there was a girlHer name was Ann and she loved her curl.She went to bed with teddy by her head

And dreamt of candy canes before she fell asleep.