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OpenAI Prompt Engineering
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Team overview
🟧Team Overview: Custom GPT Business Assistants
Powered by Aurora AI Allyâ„¢
Setup: £1,500-2,500 (depending on complexity)
Monthly Care: £300-500 (optional, 12-month commitment)
Prototype Option: £750 setup + £149/mo (no integrations, faster delivery)
🟧What This Team Does
We build voice-mirrored GPT assistants that your team can trust — they write in your exact tone, follow your brand rules, and maintain quality without constant supervision.
The problem we solve: Generic ChatGPT outputs sound robotic and bland. Teams waste 10-15 hours/week reviewing and rewriting AI-generated content. Quality is inconsistent. Brand voice gets lost.
Custom GPTs solve this: Pre-trained on YOUR voice, YOUR rules, YOUR standards — so outputs are brand-ready from the first draft.
🟧What You Get (Go-Live Ready GPT)
Voice Codex (Codes · Walls · Keys)
- Tone anchors (phrases you always use)
- Hard boundaries (what it will never say)
- Reset commands (how to correct off-brand outputs)
- Brand voice calibration using V.E.R.A.â„¢ methodology
Instruction Spine
- Role definition (what this GPT does)
- Mission statement (why it exists)
- Operating rules (how it behaves)
- Output formats (structure of responses)
- Quality standards (what "good" looks like)
Knowledge Pack
- Your offers and services (accurate, no invention)
- FAQs and objection responses
- Proof points and case studies
- Pricing information (current and correct)
- Industry-specific terminology
Few-Shot Examples & Starters
- 10-15 on-brand examples for repeatable quality
- Prompt templates for common scenarios
- Before/after samples (generic → brand-aligned)
Edge-Case Routing
- Discount request handling
- Competitor comparison scripts
- Sensitive topic protocols
- Safe refusal language
- Escalation pathways
Quality Assurance & Safety
- Red-team testing (adversarial prompts)
- Hallucination traps (catches false claims)
- Fact-checking protocols
- Claim verification system
- Brand consistency checks
Handover Pack
- Usage guide with examples
- Edit points (how to modify)
- Rollback procedures
- Change log template
- Team training session (30 min)
Optional Integrations (Advanced builds)
- Notion/Google Drive knowledge sync
- Gmail/email integration
- Slack bot deployment
- Cal.com booking assistant
- Zapier/Make.com workflows
🟧Typical Use Cases
Content Creation:
- On-brand social media posts and captions
- Blog articles and newsletters
- Email campaigns and sequences
Client Communication:
- Inbox and DM replies
- Sales follow-ups and proposals
- Customer service responses
Internal Operations:
- Sales enablement Q&A
- SOP and knowledge assistant
- Brief and idea expansion
- Meeting notes and summaries
Strategic Work:
- Campaign planning
- Content calendar development
- Messaging framework creation
🟧Typical Outcomes
✅ 60-80% less rewriting time (first drafts are brand-ready)
✅ Faster turnarounds (minutes instead of hours)
✅ Consistent brand voice (junior team sounds like seniors)
✅ Audit trail (all outputs logged for compliance)
✅ Scalable quality (10× output without 10× team)
🟧Who This Is For
✅ Marketing agencies with multiple brand voices to manage
✅ Consultancies needing consistent client communication
✅ Sales teams doing high-volume personalised outreach
✅ Content-heavy businesses (coaches, educators, creators)
✅ Growing teams needing to scale output without hiring
🟧What We Need Before We Start
To build your custom GPT:
- 10-20 voice samples (emails, posts, articles in your best tone)
- Offers and services (what you sell, how you describe it)
- FAQs and objections (common questions, how you answer)
- Banned phrases (what you never say)
- Compliance notes (industry regulations, required disclaimers)
- Source documents (links to brand guidelines, pricing, resources)
🟧Build Timeline
Simple GPT (£1,500 | 2 weeks)
- Brand Voice GPT, FAQ Assistant, Basic Content Helper
- 1 primary function, standard knowledge base
Standard GPT (£2,000-2,500 | 3 weeks)
- Sales GPT, Client Onboarding GPT, Multi-purpose Assistant
- 2-3 functions, custom knowledge, integrations
Complex GPT (£3,000-4,000 | 4-6 weeks)
- Strategy GPT, Operations Manager, Complete System
- Multiple functions, advanced logic, API integrations
All builds include:
- 2 QA rounds with refinement
- Team testing and feedback incorporation
- 30-day optimisation support
🟧Prototype Option (Fast Track)
For teams wanting to test before full commitment:
Investment: £750 setup + £149/month
Timeline: 1 week delivery
What's included:
- Basic brand voice training
- Core instructions and knowledge
- ChatGPT interface (no integrations)
- 1 QA round
- Usage guide
What's NOT included:
- Advanced integrations
- Complex edge-case routing
- API access
- Priority support
Upgrade path: Apply £750 toward full build anytime
Monthly Care & Optimise (£300+ month)
Why ongoing care matters: Your messaging evolves. Your offers change. Your team needs continuous improvement, not a one-time setup.
What's included:
Voice & Prompt Refinement
- Monthly voice tuning based on usage
- Few-shot example refreshes
- A/B testing on outputs
- Quality improvement iterations
Knowledge Updates
- New offers and services added
- Pricing updates
- FAQ additions
- Case study integration
Performance Monitoring
- Monthly usage report
- Quality metrics (brand consistency score)
- Time saved on calculations
- Team adoption tracking
Safety & Compliance
- Guardrail checks (monthly red-team tests)
- Hallucination monitoring
- Claim verification updates
- Compliance reviews
Priority Support
- 48-hour response on change requests
- Monthly optimisation call (optional)
- Quarterly voice recalibration
- Change log maintenance
Commitment: 12-month minimum (continuous improvement model)
🟧Delivery Options
ChatGPT Plus/Team (Standard)
- Client needs ChatGPT Plus (£20/mo) or ChatGPT Team (£25/user/mo)
- Private GPT link provided
- Accessible from any device
- Easiest setup
API Integration (Advanced)
- Embedded in a website, Slack, or internal tools
- No ChatGPT account needed for end users
- Custom interface
- Additional development cost (£2K-5K)
🟧Data & Privacy
Training data: Used only for your GPT, not shared with OpenAI's models
Usage logs: Retained 30 days, purged automatically
Deletion: On request anytime
Compliance: GDPR-compliant, audit trail available
The Path to Custom GPTs
Usually follows this sequence:
- Aurora AI Audit™ (£997) — Identify which GPT(s) to build first
- Custom GPT Build (£1,500-4,000) — System goes live
- Monthly Care (£300-500, optional) — Continuous optimisation
Alternative paths:
- Prototype first (£750 + £149/mo) — Test before full build
- GPT adoption — We can repair/optimise existing GPTs after a health check
🟧ROI Examples
Marketing Agency
Before: 15 hrs/week writing client content
After: 3 hrs/week (reviewing Brand Voice GPT outputs)
Saved: 12 hrs/week = 624 hrs/year = £31,200/year (at £50/hr)
Investment: £2,500 setup
ROI: 1,148% Year 1 | Payback: 3 weeks
Sales Team
Before: 10 hrs/week writing outreach emails
After: 2 hrs/week (personalising Sales GPT outputs)
Saved: 8 hrs/week = 416 hrs/year = £20,800/year
Investment: £2,000 setup
ROI: 940% Year 1 | Payback: 4 weeks
Consultancy
Before: 5 hours per client onboarding
After: 45 minutes (Client Onboarding GPT handles 80%)
Saved: 4.25 hrs per client × 50 clients = 212 hrs/year = £10,600/year
Investment: £2,500 setup
ROI: 324% Year 1 | Payback: 12 weeks
🟧The Outcome
AI employees that sound like you and save 10-20 hours/week.
Your team scales output without losing quality.
Your brand voice stays consistent across all content.
Your junior team members sound like seniors.
Your business grows efficiently without linear hiring.
Setup: £1,500-4,000 (depending on complexity)
Monthly Care: £300-500 (optional)
Prototype: £750 + £149/mo (test before committing)
Timeline: 2-6 weeks, depending on complexity
ROI: Typically 300-1,000% in Year 1