6.1 Sol released seven days after GPT-6-Sol.
I heard people complaining about GPT-6-Sol not being any better than GPT-5.6-Sol, but I believe that this was the goal. GPT-6-Sol kept roughly the same intelligence as 5.6 Sol at what is basically half the cost.
6.1 Sol is actually a better model. I get roughly equal output quality from it, while being able to use it with fast mode without my limits going to hell. I use the 100$ a month plan currently.
Still, 6.1 Sol isn’t all sunshine and rainbows. It misses trivial things that 5.6 Sol wouldn’t, but 6 Astra would miss, so its pretty reasonable to say that this is just distilled off of Astra. However, (personally have not tried this, I will be doing it soon) it does seem to be better at 3D modeling, and computer use is slightly worse.
I have switched over to 6.1 Sol for all of my work with GPT models, and only use Astra because 6.1 Sol does sometimes miss trivial things or intent, whereas Astra is slightly better at this.
I personally cannot wait GPT-6.1-Astra.