In the past, creating AI models capable of producing human-like responses, like ChatGPT, relied heavily on large teams made up of inexpensive workers to assist in teaching these systems basic concepts, such as identifying common objects in images. However, as AI technology evolves, there is an increasing need for a diverse array of skilled human trainers, including historians, scientists, and specialists, to support the sophisticated capabilities of these models.

According to Ivan Zhang, co-founder of Cohere, the approach to training has shifted significantly in the past year. Where once the company could fill training roles with undergraduates, they now depend on professionals such as licensed medical practitioners and financial analysts to guide the AI's behavior in their respective fields. Cohere collaborates with Invisible Tech, which has become a key partner in AI training and has established a large global network of qualified trainers, which includes thousands of PhDs and master's degree holders.

Invisible Tech, initially a workflow automation firm, shifted its focus when it began partnering with OpenAI around 2022 to address critical issues regarding the accuracy of outputs from early versions of ChatGPT. According to founder Francis Pedraza, their trained professionals offer vital reinforcement learning and human feedback to fine-tune these AI models. The organization has established itself as a primary resource for various AI companies, including Cohere and AI21, emphasizing that cost-effective quality training is crucial for the success of AI initiatives.

OpenAI utilizes a dedicated "Human Data Team" to experiment with ways to reduce AI errors and improve the quality of generated outputs. These efforts involve extensive collaborations with both researchers and partnered trainers to provide specialized knowledge tailored to the AI's needs. The complexity of topics, whether in history or complex fields like medicine, often necessitates the hiring of contract workers with subject-specific expertise.

As the competition within the AI industry intensifies, platforms like Invisible are experiencing a surge in demand for specialized training services, reflecting a broader trend where new companies are emerging to cater to this need. This shift not only highlights the increasing importance of expert human trainers in the AI development process but also opens up lucrative job opportunities for individuals skilled in various domains, even if they are not versed in coding.