GPT-5.4 now available on AI Gateway
GPT-5.4 and GPT-5.4 Pro models are now available through Vercel's AI Gateway, bringing improved reasoning, agentic capabilities, and token efficiency across coding and knowledge work domains. The Gateway provides unified API access with observability, cost tracking, failover, and intelligent provider routing.
GPT-5.4 and GPT-5.4 Pro are now available on AI Gateway.
This model brings the agentic and reasoning leaps from GPT-5.3-Codex to all domains. This includes knowledge work like reports, spreadsheets, presentations, and analysis in addition to coding. It handles complex multi-step workflows more reliably, including tasks that involve tools, research, and pulling from multiple sources. GPT-5.4 is faster and also more token-efficient than previous iterations (GPT-5.2). GPT-5.4 Pro is for developers who need maximum performance on the most complex tasks.
To use this model, set model to or in the AI SDK.openai/gpt-5.4openai/gpt-5.4-pro
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , support, and intelligent provider routing with automatic retries.observabilityBring Your Own Key
Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground
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