### Which ChatGPT model should I use for board-report prompts?
GPT-5 is the right default for prompts 1, 3, 5, 7, and 9 — the synthesis-heavy ones where the narrative quality drives board perception. GPT-5-mini is sufficient for prompts 2, 4, 6, 8, and 10 because the structural output is well-defined and the narrative budget is short. The full chain at GPT-5 prices runs under $1 per week. See the OpenAI model documentation for the current generation and context windows.
### Will ChatGPT invent numbers if my input is incomplete?
Yes, unless you constrain it. Every prompt above includes either an explicit verbatim-quote requirement (prompt #2), an arithmetic-check rule (prompt #1), or a NEEDS-DATA sentinel (prompt #7) to surface the gap rather than paper over it. The OpenAI prompt engineering guide covers the underlying technique — explicit refusal-to-fabricate instructions — in detail.
### Can these prompts replace the CFO or the chief of staff?
No. They replace the synthesis labor; they do not replace the judgment about what to disclose, how to frame a miss, or which board question deserves a longer answer than the draft. A human reviews every output before it goes to the board. The right model is augmentation: the chain produces 80% of the artifact, the operator owns the last 20% that earns trust.
### How do I integrate these prompts with ChartMogul, Stripe, and HubSpot?
All three platforms expose JSON exports and webhook APIs. The most common pattern in 2026 is a Sunday-evening Zap or workflow that drops the previous week's exports into a shared folder, then a single script that paste-loads them into the prompt inputs. Stripe's Sigma data warehouse and ChartMogul's export API are documented for this use case. HubSpot's reporting API covers the pipeline CSV.
### What if the board wants more frequent updates than weekly?
Run prompts 1, 2, 3, and 8 (the numerics) twice a week and prompts 5, 6, 9, and 10 weekly. The synthesis prompts (5, 6) need at least a week of fresh data to produce a meaningful delta; running them more often produces noise. The NACD's 2025 governance survey found that 23% of boards now request twice-weekly numeric updates with weekly narrative — the chain accommodates the split.
### Are the sample outputs above synthesized or real?
Synthesized for illustration. Real outputs vary by model, temperature, and input quality. The structure, constraint compliance, and arithmetic discipline are representative of GPT-5 with the prompts as written; the specific company names and numbers are illustrative.
### How do I keep these prompts current as ChatGPT evolves?
The prompts encode rules — arithmetic checks, forbidden phrases, structural constraints, evidence-phrase requirements — rather than relying on a specific model's default behavior. As GPT-5 evolves into GPT-6 and beyond, the same rules keep producing the same artifact shape; the underlying narrative quality improves. Re-test the chain against each major OpenAI release; the OpenAI release notes are the source of truth.