I can't confirm any of this, but I'm at least hearing the rumors.

1) GPT-6-Sol will be another significant leap forward; its price-performance ratio compared to Astra will be surprisingly good. Most likely, it will be released on Tuesday.

2) Opus 5.5, in response to OpenAI's move, is also expected this week, today or tomorrow. A significant leap forward; OpenAI and Anthropic are currently neck and neck. Opus is a response to GPT-6-Sol.

What's new to me is that "Bel" is internally referred to as AGI. Considering the graph, which still shows how quickly OpenAI's models continue to improve, this isn't surprising (graph below).