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Compare model prices

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

GPT-5.1GPT-6 Luna

A month of tokens

  • GPT-5.1$325.00
  • GPT-6 Luna$20.00

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

Side by side

GPT-5.1GPT-6 Luna
Input per 1M$1.25$0.1
Output per 1M$10$0.5
Cached input$0.125$0.01
Batch in / out$0.625 / $5$0.05 / $0.25
Blended (3:1)$3.44$0.2
Context400K1.05M
Routes57
ReleasedNov 13, 2025Sep 22, 2026
Leadersboard score3 (#39)n/a

On the price map

$0.03$0.1$0.3$1$3$10$30$100$0.03$0.1$0.3$1$3$10$30$100$300Input $ per 1M tokensOutput $ per 1M tokensxxZZDMOOOOOOOOOOOOOOOOZDGMMDMGDQMGGMMZGGDDGGGGGGGGMOOOZQAQQAQQQAAAQAQxQQAQQAQAAAAQQQQxxxOOOOOOOOOOOOOOOOOAAOMMQQQMGGMQQQQQQQMMMMQQQQQQQMQQQQxMMCZZZZZZZAAAOAOOOOOOOACDDDDDMDDMGGZMOQQQMOOZZQMMQQQQQGGGMMMMMMOOOMQCAOCCOOOOOOMQGGGZMDMMGMMQQQ
Size: context window, 8K to 2MEqual blended cost (3:1) 243 models, lower left is cheaper

Every route

GPT-5.1

  • OpenAIflex-50%$0.625 / $5cached $0.063
  • Azure AI Foundrydefault region$1.25 / $10cached $0.13
  • OpenAI (list)the lab's own API$1.25 / $10cached $0.125
  • Azure AI Foundryswedencentral+10%$1.38 / $11cached $0.143
  • OpenAIfast+100%$2.5 / $20cached $0.25

GPT-6 Luna

  • OpenAIflex-50%$0.05 / $0.25cached $0.005
  • Azure AI Foundrydefault region$0.1 / $0.5cached $0.01
  • OpenAI (list)the lab's own API$0.1 / $0.5cached $0.01
  • AWS Bedrockus-east-1+10%$0.11 / $0.55cached $0.011
  • Azure AI Foundryeu+10%$0.11 / $0.55cached $0.011
  • Azure AI Foundryus+10%$0.11 / $0.55cached $0.011
  • OpenAIfast+100%$0.2 / $1cached $0.02

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.