The pricing side of GPT-5.1-Codex in one view: live rates, workload examples, cheaper alternatives, and direct paths into the calculator tools.
Rate card
$1.25/M in · $10.00/M out
Market rank
#36
LLM
Context
400.0K tokens
128.0K max output
Access
Hosted API
OpenAI
Cost Estimator
You save $4.13/month vs category average
Models from the same market that come in below GPT-5.1-Codex's current unit price.
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MiniMax
NVIDIA
StepFun
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This page concentrates the cost side of GPT-5.1-Codex into one place: live rates, workload examples, market context, lower-cost alternatives, and direct links to the dedicated calculator tools.
Use it to spot the models that undercut GPT-5.1-Codex on price while staying in the same category. From there, jump into the calculator or the full model page to decide whether the quality tradeoff is worth it.
Yes. The same live pricing feeds that power the homepage, calculators, and provider pages also drive this pricing page.