Those are the same thing. The whole point of saying "too big to fail" is to evoke the moment in the housing crash where governments largely threw most of their citizens under the bus by bailing out banks rather than homeowners for the banks' wildly irresponsible decisions. "Too big to fail" means the government steps in and bails you out, and that phrase became popular because for many it was the final nail in the coffin for their trust in government

Would the current administration bail out OpenAI?