AI was the fastest-growing category on Upwork during the first half of this year, the talent platform reported. Generative AI job posts on its platform rose more than 1,000% in the second quarter compared to the end of last year. In addition, related searches increased more than 1,500% in the same time period.

Upwork on Aug. 22 released new data from the past six months and found that ChatGPT and BERT were among the top 10 AI-related searches by clients on its platform. BERT stands for Bidirectional Encoder Representations from Transformers and is a natural language processing model proposed by researchers at Google, according to GeekforGeeks.org.

Here are the top 10 generative AI-related searches from client companies on Upwork from Jan. 1 to June 30:

1. ChatGPT
2. BERT
3. Stable Diffusion
4. TensorFlow
5. AI chatbot
6. Generative AI
7. Image processing
8. PyTorch
9. Natural language processing
10. Bard

Upwork said it has also seen a shift in search activity as businesses move from searching for singular generative AI tools to searching for AI applications and services. This shows hiring managers are understanding more about generative AI and its use cases, according to the company.

It also looked at the top 10 generative AI-related projects for which clients hired freelancers on its platform. They were:

1. ChatGPT
2. Natural language processing
3. TensorFlow
4. Image processing
5. PyTorch
6. AI content creation
7. Midjourney
8. AI chatbot
9. Model Tuning
10. Stable Diffusion

“The search terms companies are using and what they will hire for are evolving to be more sophisticated, and we think we’ll continue to see that understanding deepen over time,” Kelly Monahan, managing director of the Upwork Research Institute, said in a press release. “We’re also seeing the talent supply on Upwork rise to meet that evolving demand, which is really impressive given how quickly this demand has appeared on our marketplace and in the world broadly.”