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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 Luna ProOpenAIRemove
  3. Claude Fable 5.1AnthropicRemove
mai-ds-r1:free vs gpt-6-luna-pro vs claude-fable-5.1
Attributemai-ds-r1:freeNot in the catalogueGPT-6 Luna Progpt-6-luna-proClaude Fable 5.1claude-fable-5.1
Pricing
Input—$0.10 / 1M$10.00 / 1M
Output—$0.50 / 1M$50.00 / 1M
Cache Write (5m)—$0.10 / 1M$12.50 / 1M
Cache Write (1h)—$0.10 / 1M$20.00 / 1M
Cache Read—$0.10 / 1M$0.25 / 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—OpenAIAnthropic
Category—chatchat
Charge type—Pay As You GoPay As You Go
Released———
Description
Summary—GPT-6 Luna Pro uses the same underlying model as GPT-6 Luna, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. It combines Luna's speed and cost efficiency with deeper reasoning and more reliable multi-step execution, making it well suited for advanced coding, computer use, and agentic workflows where higher solution quality is needed without moving to a larger GPT-6 tier.Claude Fable 5.1 is an upgraded version of Fable 5, delivering broad improvements with particularly strong gains in agentic coding, long-running workflows, and professional knowledge work. It excels at large code refactors, front-end and visual code generation, financial analysis, and complex analytical tasks. Compared with Fable 5, it also produces more concise plans and summaries while maintaining strong performance across extended tasks, making it a natural upgrade for existing Fable workflows and a strong option alongside Opus 5 for reasoning-intensive applications.