Model pricing

OpenAI: GPT-5.1-Codex-Max API Pricing

Compare 10 providers offering OpenAI: GPT-5.1-Codex-Max. Official rate is $1.25, the cheapest quote is $1.00.

Providers
10
Official
$1.25
Cheapest
$1.00
Context
400K

Provider pricing

Cheapest and most expensive quotes differ by 1.3×.

Estimate my cost
Period

based on 30 days

ProviderInputOutputCached inputContextvs officialYour cost
apimart.aiReseller

265K

$1.00$8.000.80×$78cheapestUse
OpenRouterAggregator

17.3M

$1.25$10.00$0.125400K1.00×$98+$20Use
OpenAIModel owner
$1.25$10.00$0.125400K1.00×$98+$20
AzureInference platform
$1.25$10.00$0.125400K1.00×$98+$20
AIHubMixReseller

218K

$1.25$10.00400K1.00×$98+$20Use
aigcbest.topReseller
$1.25$10.001.00×$98+$20Use
$1.25$10.001.00×$98+$20Use
yunwu.aiReseller
$1.25$10.001.00×$98+$20Use

109K

$1.25$10.001.00×$98+$20Use
nickz.aiReseller
$1.25$10.001.00×$98+$20Use

Prices captured Jul 26, 2026

Prices change frequently and promotional rates expire — always confirm on the provider's own pricing page before committing. Rates far below official pricing often indicate shared or resold accounts.