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Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. mai-ds-r1:freeNot in the catalogueRemove
  2. GPT-6 LunaOpenAIRemove
  3. GPT-6 Astra ProOpenAIRemove
mai-ds-r1:free vs gpt-6-luna vs gpt-6-astra-pro
Attributemai-ds-r1:freeNot in the catalogueGPT-6 Lunagpt-6-lunaGPT-6 Astra Progpt-6-astra-pro
Pricing
Input—$0.10 / 1M$10.00 / 1M
Output—$0.50 / 1M$50.00 / 1M
Cache Write (5m)—$0.10 / 1M$10.00 / 1M
Cache Write (1h)—$0.10 / 1M$10.00 / 1M
Cache Read—$0.10 / 1M$10.00 / 1M
Web Search—$0 / 1M$0 / 1M
Context
Max context—1.1M1M
Max output—N/AN/A
Capabilities
Vision—YesYes
Function Calling—YesYes
JSON Mode—YesYes
Streaming—YesYes
Catalogue
Provider—OpenAIOpenAI
Category—chatchat
Charge type—Pay As You GoPay As You Go
Released———
Description
Summary—GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, optimized for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic tasks. It combines low-cost, responsive inference with the GPT-6 family’s improvements in factual reliability and clear, concise communication. At higher reasoning effort, GPT-6 Luna can also handle complex software engineering and computer-use workflows that previously required a Sol-tier model, making it a versatile choice for scalable production applications that need to balance speed, cost, and capability.GPT-6 Astra Pro uses the same underlying model as GPT-6 Astra, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. Optimized for deeper reasoning, greater accuracy, and more reliable multi-step execution, it is well suited for demanding coding, analysis, and agentic workflows where solution quality takes priority over speed and cost.