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Compare model prices

Input, output, cached and batch prices, every route and a month of tokens, side by side.

GPT-5.1

A month of tokens

  • GPT-5.1$325.00

100M input and 20M output tokens, list price. Use your own numbers.

Side by side

GPT-5.1
Input per 1M$1.25
Output per 1M$10
Cached input$0.125
Batch in / out$0.625 / $5
Blended (3:1)$3.44
Context400K
Routes5
ReleasedNov 13, 2025
Leadersboard score3 (#39)

On the price map

Size: context window, 8K to 2MEqual blended cost (3:1) 243 models, lower left is cheaper

Every route

GPT-5.1

Way to buyIn / out per 1M
OpenAI
flex, cheapest · cached $0.063
$0.625 / $5-50% vs list
OpenAI API
The lab's own API · cached $0.125
$1.25 / $10List price
Azure AI Foundry
Default region · cached $0.13
$1.25 / $10Same as list
Azure AI Foundry
swedencentral · cached $0.143
$1.38 / $11+10% vs list
OpenAI
fast · cached $0.25
$2.5 / $20+100% vs list

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Weekly: LLM API list prices that changed, Thursday mornings.