OpenAI slashes GPT-5.6 Luna pricing, makes ChatGPT free
GPT-5.6 Luna now costs 80% less at $0.20/M, while ChatGPT is free by default...
Deep Dive
Key Points
- GPT-5.6 Luna price dropped 80% to $0.20/$1.20 per million tokens, cheaper than prior models
- ChatGPT is now free by default with unlimited chats, while GPT-5.6 Sol Fast offers 2.5x speed at $10/$60 per million tokens
- DeepSeek V4 Flash input costs rose 93% to $0.27/M on August 14; migrate before October 24 deprecation
Why It Matters
These pricing shifts force cost-conscious teams to re-evaluate models, optimize spend, and adapt workflows to avoid overpaying or missing deadlines.