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I'm 74 and Built an AI Content Engine That Uses 5 Competing Models as Quality Control. Here's What 161 Posts Taught Me

Hey IH πŸ‘‹

I'm Mohan. 74 years old. Industrial engineer for 50 years. WordPress developer for 12. AI builder for the last two.

Last month I published 161 blog posts in 48 hours. Average SEO score: 84/100 on Rank Math. Not with a team or agency β€” with a methodology I built myself.

The problem

AI-generated content has a trust problem. Not because it sounds bad β€” it sounds great. That's the danger.

I fact-checked an early GPT-4 draft. Three claims. Confidently stated. All wrong. As an engineer, that's unacceptable.

What I built

Pentangulat β€” a 5-AI consensus validation system.

Every factual claim runs through GPT-4, Claude, Gemini, Mistral, and Cohere. The rule: 70% consensus. If fewer than 4 out of 5 models agree on a claim, it gets flagged.

Result across 161 posts: ~30% of initial drafts had at least one claim that failed consensus. That's nearly one in three posts that would have gone live with errors.

Tech stack (for the builders)

  • Python 3.11
  • httpx (no SDK dependencies)
  • SQLite (zero infrastructure)
  • Anthropic API for content generation
  • 3,536 lines of production code
  • 111 passing tests

The product

I documented the entire methodology in the AI-Era SEO Playbook β€” covering GEO (Generative Engine Optimisation), LLMO (Large Language Model Optimisation), AEO (Answer Engine Optimisation), Rank Math configuration, and a 90-day rollout plan.

$47.65 on Gumroad β†’ seekrates-ai.com/playbook

Why $47.65? Because one SEO consultant's hourly rate buys you a permanent methodology.

Results so far

  • 161 posts live on seekrates-ai.com
  • 84 average Rank Math score (industry typical: 60-70)
  • ~30% error catch rate via consensus
  • Schema markup (FAQ + Article) on every page
  • llms.txt + AI crawler configuration live
  • All sitemaps submitted to Google + Bing

Lessons for other indie hackers

  1. Age is irrelevant. Curiosity is the only prerequisite. I started building AI tools at 72.

  2. AI consensus is massively under-explored. Everyone uses AI to generate. Almost nobody uses AI to validate. That gap is where quality lives.

  3. Boring infrastructure first. I spent weeks on vocabulary definitions and test infrastructure before writing a single feature. The code worked because the requirements were unambiguous.

  4. Walk the talk. 161 live posts with verifiable scores. Not a landing page with promises β€” a live site with proof.

Would love to hear from anyone working on AI content quality, SEO automation, or multi-model validation. Happy to share technical details.

What's your approach to AI content accuracy?

on February 9, 2026
  1. 1

    The 5-model consensus approach is clever β€” it's essentially using disagreement as a signal for uncertainty. Most AI tooling treats models as interchangeable; you're treating them as a panel of experts with different biases.

    A few questions on the methodology:

    1. Consensus failure modes: When 4/5 models agree but they're all wrong (shared training data bias), how do you catch that? Do you have a fallback for factual claims in domains where all models tend to hallucinate together (e.g., recent events, niche technical specs)?

    2. Cost per post: Running 5 API calls per claim adds up. What's the actual per-post cost for a typical 1,500-word article? Curious if this is economically viable at scale.

    3. Threshold tuning: Why 70% (4/5) specifically? Did you experiment with stricter thresholds (5/5 required) or looser ones (3/5)?

    The "boring infrastructure first" lesson resonates. I've seen too many AI projects skip vocabulary alignment and end up debugging semantic mismatches for months.

    Also β€” starting AI development at 72 is genuinely inspiring. The curiosity-over-credentials mindset is underrated in tech.