“LM Explorer (alpha)”, Allen Institute For Artificial Intelligence2019-02-26 (; backlinks; similar)⁠:

This demonstration uses the public 345M 117M parameter OpenAI GPT-2 language model to generate sentences.

Enter some initial text and the model will generate the most likely next words. You can click on one of those words to choose it and continue or just keep typing. Click the left arrow at the bottom to undo your last choice.