GPT-5.4 chatbot costs under a cent

The interesting part is not that GPT-5.4 is “cheap,” but that real production usage can stay economically boring once you control context, caching, and output length.

• –390 exchanges for $3.25 suggests the inference bill is often smaller than the surrounding stack, especially for modest traffic sites
• –The user’s own estimate puts 2,000 monthly interactions at roughly $16-17 on GPT-5.4, which is within normal SaaS spend for many businesses
• –OpenAI’s published GPT-5.4 pricing still makes output-heavy workflows the main cost driver, so answer length matters as much as model choice
• –This supports a pragmatic production pattern: keep retrieval narrow, trim injected context, and avoid letting chat UX sprawl into token bloat
• –It is a useful counterpoint to blanket “AI is too expensive” claims, but only for systems that are engineered well