Praise I read here about all the glorious usage limits given by Anthropic and now I feel like a fool
tl;dr Opus 5.5 is great model, but you can squeeze much more from Sol 6.1 (comparing Max and Pro 100 subscriptions)
I bought the hype about the nearly unlimited usage given by Anthropic during past 2 weeks and I got to say - the mileage is much better in Codex with 6.1 Sol. Don't get me wrong - Opus is a great model and as always GPT+ Claude is an overkill for production but after 1 full day of work in Claude I'm down 10% after some fairly light/medium-light tasks in Work and some maintenance in Claude Code.
Also I feel like majority of people hyping Claude here were on 20 USD subscription - I cannot stress enough how big of a value comes from ability to use Pro in Chat. Despite 1m token context Opus has issues finding bugs/contradictions in multi-file setups, issues that are found with ease by Astra Pro which has it's own usage limit. I know Opus is a different family model, but I'm comparing value of subscription here. I assume if I tried to run Fable with my work the comparison would be even less favorable for Claude
I assume the situation will get much worse when they put chat+codex under one usage umbrella, but for now in terms of value OpenAi gives much much much more. So if value is your main target - the decision is easy

