GPT-5 introduced three new API features: verbosity, reasoningEffort, and a unified model lineup. That gives developers more control over responses and costs.

I wrote a concise guide with runnable AI SDK examples for each, so you can try them in under a minute.

Blog link: https://medium.com/@miguel.paracuellos.inf/gpt-5-for-developers-3-new-api-features-you-should-be-using-today-d3886b5730ee

I’d love to hear how others are using these settings in production, especially any tuning strategies you’ve found effective.