Taking a ChatGPT prototype to production: what actually breaks
Your ChatGPT demo worked and someone wants it rolled out. What breaks between prototype and production, what it costs, and when not to bother.
SpotDev blog
Expert insights for B2B revenue leaders
Practical guides on customer portals, HubSpot integrations, data engineering and AI, from the SpotDev team.
Latest Articles
Thoughts and guidance from SpotDev
Practical guides, proven strategies, and a few opinions.
Taking a ChatGPT prototype to production: what actually breaks
Your ChatGPT demo worked and someone wants it rolled out. What breaks between prototype and production, what it costs, and when not to bother.
What the OpenAI API does that ChatGPT cannot: a guide for operations leaders
ChatGPT seats, workspace agents or a built system? The three tiers of commitment, where each one stops, and an honest test for which you actually ...
Custom GPTs versus a properly built agent: the practical difference
You built a Custom GPT and it works. Where it structurally stops, what a built agent adds, and the cheaper middle option before you commission ...
Realtime API migration: what changes and who is affected
OpenAI's legacy audio, realtime and transcription models shut down 20 Jan 2027. How to tell whether your voice system is affected and what to re-test.
AI consultant or implementation partner? What UK enterprises should hire
Looking for an enterprise AI consultant in the UK? Why engineering-led implementation beats advisory-only consulting, and what to check before you ...
Agent Builder is winding down: what to do with a no-code agent you already built
OpenAI shuts down Agent Builder and Evals on 30 Nov 2026. How to find out whether your business is running one, and the three options worth ...
The Assistants API retires on 26 Aug 2026: what UK businesses need to do
OpenAI shut down the Assistants API on 26 Aug 2026. How to check whether you are affected, the object mapping, and your three real options.
Connecting the OpenAI API to your CRM: the six integration patterns and what each costs
Read-only, approval, autonomous, event-driven, batch, agent-initiated. Six ways to wire an AI agent to a CRM, what each costs and how each fails.
ChatGPT's Deep Research and the HubSpot connector, for CRM admins
What the HubSpot connector for ChatGPT can see, which admin decisions cannot be undone, what leaves your CRM, and when it is the wrong tool for the ...
Governing AI write-access to your CRM: what to allow, and how to prove what it did
HubSpot restores CRM changes for 14 days, and property restrictions do not apply to API writes. The controls to agree before an agent writes to a ...