Building a full “AI life OS” ChatGPT vs Claude – what would you pick?
I’m trying to build a full AI ecosystem around my life and agency – basically an army of personal assistants and agents running 24/7 – and I want to pick ONE LLM provider to standardize on (for cost, architecture, and sanity).
Stack-wise I’m planning to use n8n as the main automation spine. On top of that, I want AI agents to handle:
- Personal assistant stuff
- Daily briefings from all my calendars
- Time‑blocking and reminders
- Turning brain dumps (text/voice) into tasks + scheduled blocks
- Agency + business ops
- Writing and replying to client emails
- Drafting proposals/SOWs, offers, and decks
- Generating copy for landing pages, funnels, and websites
- Helping with basic app/website scaffolding and code suggestions
- Marketing / creative
- UGC ad scripts, hooks, variations
- Content ideas and outlines for LinkedIn, email, etc.
- Prompts + iterations for image/video tools (Higgsfield, etc.)
- Meta / “life OS”
- Documenting my systems, SOPs, playbooks
- Helping me actually follow through (ADHD, so I want the AI to nudge me, not just give me long essays)
I’m not trying to play model‑of‑the‑day. I want one provider I can build around for 1–2 years and go deep: APIs, cost optimization, n8n workflows, client solutions, everything.
From your real‑world experience:
- If you had to choose one LLM provider today for this kind of “life OS + agency OS” (OpenAI vs Claude), which would you choose and why?
- How do they compare in practice on:
- Cost at scale (lots of small automation calls + some big creative/proposal calls)
- Reliability and rate limits
- Tooling / ecosystem (multimodal, search, integrations, etc.)
- For n8n users specifically: which one has been smoother to work with long‑term (less jank, better docs, fewer weird edge cases)?
- Any “I went all‑in on X and here’s what I regret / what I love” stories are super helpful.
I’m especially interested in answers from people who:
- Run agencies or solo businesses on top of automations
- Have real usage numbers (requests per day, rough monthly spend, main bottlenecks)
- Tried both and decided to standardize on one
I know “use both” is ideal, but for this question assume I’m forcing myself to pick one main engine for 90%+ of my stack.
Thanks a ton – want to make a decision that I won’t have to rip out in 6 months.