OpenAI Slashes GPT-5.6 Series Prices, Adds Fast Mode for Sol Model
daniel_mac8 · x · 2026-07-31
OpenAI has announced major price cuts for its GPT-5.6 series models:
- GPT-5.6 Luna: 80% price drop, now $0.20 per million input tokens and $1.20 per million output tokens.
- GPT-5.6 Terra: 20% price drop, adjusted to $2 and $12 for input and output respectively.
- GPT-5.6 Sol: Gets a Fast mode in the API, offering up to 2.5x the speed for 2x the price while maintaining the same intelligence.
Related event: OpenAI launches GPT-5.6 family: Luna price cut 80%, Sol gets Fast mode(67 posts)→
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