GPT 5.3 Codex is now on AI Gateway

T1Covered by 1 source · first reported by Vercel (blog + changelog) at 24 Feb, 13:00 UTC

GPT 5.3 Codex is now available on AI Gateway. GPT 5.3 Codex brings together the coding strengths of GPT-5.2-Codex and the reasoning depth of GPT-5.2 in a single model that's 25% faster and more token-efficient. Built for long-running agentic work, the model handles research, tool use, and…

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• T1GPT 5.3 Codex is now on AI GatewayVercel (blog + changelog)24 Feb, 13:00