openai cut gpt-5.6 luna api pricing by 80%. here's where that leaves the 50-51 band on artificial analysis

luna went from $1.00/$6.00 per 1M to $0.20/$1.20

against every other model scoring 50-51, blended per 1M:

• gemini 3.5 flash: $3.38 – 7.5x luna
• gemini 3.6 flash: $3.00 – 6.7x
• glm-5.2: $2.15 – 4.8x
• muse spark 1.1: $2.00 – 4.4x

before the cut luna was $2.25 – the most expensive of the group after the two gemini flashes. glm and muse both undercut it. one pricing update from @OpenAI moved it from 3rd to 1st with a 4.4x gap to second place. no new model, same index score

@sama: "we want to offer the best price/intelligence tradeoff at every level"

this is the new standard rate on the pricing page, not a promo – no end date announced