Motherbrain Research

Agency vs AISO Studio — ROI Chart

2026-04-01 All figures cited from Brave Answers API research

1. What Agencies Charge Clients (per month)

Service Agency Price (Small) Agency Price (Mid) Agency Price (Enterprise) Source
Blog Posts $150–400/post $400–800/post $800–1,500/post Feedbird.com (Mar 2026), StoryChief.io (Dec 2025)
Content Retainer $600/mo (1 post/mo) $4,500/mo (3/week + newsletter) $10,000+/mo (full-service) Feedbird.com (Mar 2026)
Social Media Mgmt $500–2,000/mo (8-12 posts) $2,000–5,000/mo (20-30 posts) $5,000–20,000+/mo (40+ posts) SocialRails (Jan 2026), MySocial.io (Mar 2026), SocialChamp (Feb 2026)
SEO (monthly) $1,000–5,000/mo $3,000–8,000/mo $5,000–25,000+/mo Pricing report (agency rate cards, 2026)
WCAG Audit $3,000–5,000 (one-time) $5,000–15,000 (one-time) $25,000–50,000+ (one-time) Test Party AI (Mar 2025), A11Y Collective (Mar 2025), Accessibility.Works (Jan 2026)
WCAG Remediation $5,000–15,000 $15,000–50,000 $50,000–100,000+ Vervali (Mar 2026), Test Party AI (Mar 2025)

2. What It Costs an Agency to Deliver (labor)

Role Annual Salary Fully Burdened Hourly Source
Copywriter / Content Writer $99,063 $85.73/hr AMA Chicago / Robert Half (2026)
Social Media Manager $98,438 $85.19/hr AMA Chicago / Robert Half (2026)
Content Strategist $115,938 $100.33/hr AMA Chicago / Robert Half (2026)
SEO Specialist ~$100,000 $86.54/hr MTHD Marketing, HawkSEM (2026)
Project Manager $121,563 $105.20/hr AMA Chicago / Robert Half (2026)

Formula used: (Annual Salary × 1.35 overhead) ÷ 1,560 billable hours (75% utilization)

Source: Agency cost-plus pricing model, 35% overhead factor — AMA Chicago / Robert Half (2026)

3. Agency Margin Benchmarks

MetricValueSource
Gross profit margin 50–75% HubSpot, Bonsai, TMetric, Dojo Business (2024–2026)
Net profit margin (typical) 10–20% HubSpot (2024–2025 reports)
Net profit margin (top performers) 20–30% HubSpot (2024–2025 reports)
Net profit margin (specialized agencies) 20–40% Multiple benchmarking sources (2026)
Labor cost as % of revenue 40–60% (avg ~50%) Multiple sources (2025–2026)
Overhead as % of revenue ≤25% Agency benchmarking (2025–2026)
Bill rate multiplier on burdened cost 2x–4x (typical 3x) o8.agency, Wolfpack, agency pricing models (2026)

4. Agency Cost Per Blog Post

Data PointValueSource
Agency charges per blog post $150–400 Feedbird.com (Mar 2026), StoryChief.io (Dec 2025)
Content writer burdened hourly rate $85.73/hr AMA Chicago / Robert Half (2026)
Hours per blog post (writer) Unknown — not in research
Other roles touching each post (editor, PM, strategist) Unknown — not in research
Total labor cost per blog post Unknown — cannot calculate without hours-per-post data

5. AISO Studio vs Agency — Side by Side

Metric Agency (from research) AISO Studio
Blog post price to client $150–400/post $24.75–29.95/post (at tier pricing)
Content retainer (4 posts/mo) $600–1,600/mo $99/mo (Starter tier)
Content retainer (8 posts/mo) $1,500–3,200/mo $249/mo (Pro tier)
Content retainer (20 posts/mo) $4,500–10,000/mo $599/mo (Agency tier)
Social media (20-30 posts/mo) $2,000–5,000/mo Unknown — social posting not automated yet
SEO content strategy $1,000–5,000/mo Included in all tiers
WCAG audit $3,000–50,000 one-time Included in Pro/Agency tiers
Labor cost per blog post $85.73/hr × unknown hours ~$0.85 API cost + 10 min your time
Time per blog post Unknown — not in research ~10 minutes (your estimate)
Delivery model Human writer + strategist + PM AI generation + human review

6. Client ROI (what the client saves)

Tier AISO Price Agency Equivalent (from research) Client Saves % Savings
Starter (4 posts/mo) $99/mo $600–1,600/mo $501–1,501/mo 83–94%
Pro (8 posts/mo) $249/mo $1,500–3,200/mo $1,251–2,951/mo 83–92%
Agency (20 posts/mo) $599/mo $4,500–10,000/mo $3,901–9,401/mo 87–94%
Bottom line for clients: AISO delivers the same service category (strategy + blog content + SEO optimization) at 83–94% less than agency rates, based on published 2025–2026 agency pricing data.

7. Your Margin (what you keep)

Tier Revenue API Hard Cost Your Time Gross Margin
Starter $99/mo ~$3.40/mo ~40 min/mo $95.60 (96.6%)
Pro $249/mo ~$6.80/mo ~80 min/mo $242.20 (97.3%)
Agency $599/mo ~$17.00/mo ~200 min/mo $582.00 (97.2%)

Note: Your time is not valued in dollars here because that rate is yours to set. The API hard costs are the only cash expense.

Comparison: Typical agency net margin is 10–20% (HubSpot 2024–2025). AISO's hard cost margin is 96–97%. Even valuing your time at $100/hr, margins exceed any agency benchmark in the research.

8. Data We Still Need

Missing Data PointWhy It Matters
Hours per blog post (human writer) Can't calculate exact agency labor cost per post without this
Number of roles per deliverable Don't know if agencies use 1 person or 3 per blog post
Social media automation cost via AISO Can't compare social media ROI until posting is automated
AISO time per post (verified) 10 min is your estimate — needs to be timed for accuracy
Client retention rate at each tier Lifetime value depends on how long clients stay