LLM PricesModelsChangelog
Prices in USD per 1M tokens, text only. Each price shows where it came from and when it was last verified. Prices marked unverified come from models.dev (community-maintained) until we read them from the provider directly.
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GPT-5.1 Chat

Same model, served by 1 provider.

openaiClosed128k contextReleased 2025-11-13openai/gpt-5.1-chat-latest

Providers

Standard tier onlyFull precision only
ProviderTheir model idServingInputOutputCached inBlended 3:1Source
Azure AI Foundry
gpt-5.1-chat
standardglobal endpointQuantization not disclosed
$1.25$10.0$0.125$3.44
Provider API
Verified 7h ago · Changed 9h ago
Azure AI Foundry
gpt-5.1-chat
standarddata zone (US)Quantization not disclosed
$1.38$11.0$0.138$3.78
Provider API
Verified 7h ago · Changed 9h ago

Same weights don't always mean identical outputs: quantization, context limits and serving stacks can change quality, especially for tool calling. Prices are USD per 1M tokens; hyperscaler prices are for the reference region shown.

Monthly cost estimate

Azure AI Foundry global endpoint$325/mo
Azure AI Foundry data zone (US)$357.5/mo

Cache hits use each provider's cached-input price where it has one. Cache write costs aren't included.