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OpenAI cuts GPT-5.6 Luna price by 80%, undercuts cheapest competitors

openai.com · 2026-07-31

OpenAI reduced GPT-5.6 Luna to $0.20/$1.20 per million input/output tokens, making it cheaper than Gemini 3.1 Flash-Lite and one-fifth the input cost of Claude Haiku 4.5.

“Huge price drop from OpenAI today: GPT-5.6 Terra got a 20% reduction, and GPT-5.6 Luna got a massive 80% drop.”

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Bears on: amodei-ai-writes-90pct-of-code-by-2025

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