GPT-6 Astra
  Input:$10.00 / 1M tokens Cached input:$1.00 / 1M tokens Output:$50.00 / 1M tokens
  
  
  GPT-6.1 Sol
  Input:$2.00 / 1M tokens Cached input:$0.10 / 1M tokens Output:$10.00 / 1M tokens
  
  
  GPT-6.1 Terra
  Input:$1.00 / 1M tokens Cache read:$0.05 / 1M tokens Output:$5.00 / 1M tokens
  
  
  GPT-6 Luna
  Input:$0.10 / 1M tokens Cached input:$0.01 / 1M tokens Output:$0.50 / 1M tokens

That's how their pricing tiers end up now. https://openai.com/business/pricing/#api

(For some reason they say "Cache read" instead of "Cached input" for 6.1 Terra)

6.1 Astra and 6.1 Luna must be coming up soon. Will they reduce their prices further?