A marketing team under 10 runs on 3 to 4 core full-time roles plus 2 to 3 fractional specialists, loaded at 250K to 400K for 5 to 6 hires of output.
Your first marketing hire is ready when your time on marketing costs more than the hire. Skip full-time below 10K MRR; use a generalist at 15 to 50K MRR.
A fractional CMO fits startups at 3 to 25 million dollars ARR for 5,000 to 15,000 dollars a month. A full-time hire only pays off once you can scale.