OpenAI Slashes Model Prices by Up to 80%, Introduces Fast Mode
AI寒武纪 · wechat · 2026-07-31
OpenAI has announced comprehensive price reductions across its model series. The fastest and cheapest model, Luna, sees an 80% price drop, while the Terra model is 20% cheaper. The cost for the agent auto-approval mode has also been reduced to a tenth of its original price. Additionally, the high-intelligence Sol model introduces a 'Fast Mode,' boosting speeds by up to 2.5x without compromising intelligence.
The article attributes these massive optimizations to 'AI self-optimization.' Guided by human engineers, the Sol model autonomously rewrote and optimized the underlying production kernel, running experiments to improve token efficiency and monitor training. This reduced end-to-end operating costs by 20%. OpenAI aims to match models to tasks based on urgency and error margins, accelerating the era of highly affordable AI.
Related event: OpenAI launches GPT-5.6 family: Luna price cut 80%, Sol gets Fast mode(67 posts)→
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