openai just made GPT-5.6 80% cheaper — three weeks after it launched

Luna dropped from $6 to $1.20 per million output tokens overnight. this is what an actual price war looks like.

Aliteq
Lena Fischer · AI & Local Compute Editor

The numbers, confirmed by OpenAI

GPT-5.6 Luna: $1.00 → $0.20 input, $6.00 → $1.20 output per million tokens (80% off both)

The numbers, confirmed by OpenAI

GPT-5.6 Terra: $2.50 → $2.00 input, $15.00 → $12.00 output per million tokens (20% off)

The numbers, confirmed by OpenAI

GPT-5.6 Sol keeps its price but gains a Fast tier at 2x cost for about 2.5x speed

The numbers, confirmed by OpenAI

The cuts landed one day before OpenAI said it had crossed 1 billion active users

The numbers, confirmed by OpenAI

OpenAI attributes the savings to a 20% drop in GPU serving costs and 15%+ gains from better speculative decoding

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openai just made GPT-5.6 80% cheaper — three weeks after it launched

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