NanoGPTgpt-codexGPT 5.3 Codexopenai/gpt-5.3-codexNanoGPTReleased Feb 5, 2026400,000 token context windowIn $1.75 · Out $14.00ReasoningTool callingStructured outputAttachmentsTemp controlsInputtextimagepdfOutputtext
Vercel AI Gatewaygpt-codexGPT 5.3 Codexopenai/gpt-5.3-codexVercel AI GatewayReleased Feb 5, 2026400,000 token context windowIn $1.75 · Out $14.00ReasoningTool callingStructured outputAttachmentsTemp controlsInputtextimagepdfOutputtext