I tried to use Cerebras and it was unbeatable at first, but the client didn't want to pay $1300 a month and the $50/month or pay as you go was just not reliable. It would give service unavailable errors or falsely claim we were over our rate limit.

Also Groq is very fast, but the latency wasn't always consistent and I saw some very strange responses on a few calls that I had to attribute to quantization.