Which of the following is an example of a Salesforce LLM developed by Salesforce AI Research?

CodeGen is an example of a Salesforce LLM developed by Salesforce AI Research. CodeGen is specifically designed to generate code rapidly and efficiently, leveraging large language model capabilities to assist developers in creating applications. Its training on extensive data allows it to understand and produce a variety of programming languages, making it a helpful tool in modern software development.

In this context, the focus is on the unique output capabilities of CodeGen in generating functional programming code, which aligns with the needs of developers looking to automate or accelerate parts of their coding process. This application of Salesforce’s AI research underscores the organization's commitment to enhancing developer productivity through AI-driven solutions.

The other options, such as TextGen, SmartText, and PatternAI, either do not exist as recognized LLMs from Salesforce or do not align with the specific focus and capabilities attributed to CodeGen.