It's impossible to tell. Are they behind who? And on what?
It depends on who you ask. And everything is a vibe because all of this is new and things move fast. A week is a month in AI-land. A month; a year. A year? A decade.
On coding? I still like Fable better than Sol. But they're close enough that it probably is a vibe thing. Fable writes long commit messages, Sol writes commit messages like a college student in an elective computer class.
For API use, I'd say the Responses API that OpenAI architected is superior to Claude's Messages API. But again, I'm basing that off my vibes
Claude Design creates marketing imagery very effectively. GPT Image is the best imagegen model as ranked by users. Anthropic doesn't even have an imagegen model.
Anthropic definitely has compute scaling issues. OpenAI seems to have a pez dispenser that they click and out pops a GPU.
Anthropic's messaging is that they're building AI with guardrails but they've been banning people's accounts nonstop and their customer support is a lobotomized AI chatbot.
OpenAI has first mover advantage and to people not in tech, ChatGPT is synonymous with AI. But they also seem super sinister, like Uber circa 2015.
Or maybe I'm just suffering from AI psychosis. I have to go, my usage meter is about to reset.