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Models /GPT-5.3 Chat /Where to run
Provider guide

Where to run GPT-5.3 Chat

3 live offers tracked.

CHEAPEST
OpenRouter
$1.75 / $14.00
per 1M tokens in / out
FASTEST MEASURED
OpenAI
50 tok/s
measured throughput · $1.75 input / $14.00 output per million tokens
OpenRouterCHEAPEST$1.75 in/1M$14.00 out/1M—128K—40m agoOpenAI$1.75 in/1M$14.00 out/1M50 tok/s128K—39m agoMicrosoft Azure AIzero-retention$1.75 in/1M$14.00 out/1M—128K—39m ago
Full specs, hardware verdicts and benchmarks on theGPT-5.3 Chat model page →