GPT 5.3 Chat is now on AI Gateway

T1Covered by 1 source · first reported by Vercel (blog + changelog) at 03 Mar, 13:00 UTC

GPT-5.3 Chat (GPT 5.3 Instant) is now available on AI Gateway. This update focuses on tone, relevance, and conversational flow for more accurate answers, better-contextualized web results, and fewer unnecessary refusals and caveats. It also reduces hallucination rates and produces smoother and more…