OpenAI Slashes GPT-5.6 Prices: Luna Down 80%, Sol Fast 2.5x Faster

reach_vb · x · 2026-07-31

OpenAI announced major updates for the GPT-5.6 model family: Luna gets an 80% price cut ($0.20/$1.20 per 1M tokens), Terra is 20% cheaper, and Sol Fast is up to 2.5x faster. The auto-review feature has been upgraded to Luna, making it about 10x cheaper. These cost reductions also apply to usage within Codex and ChatGPT Work.

Related event: OpenAI Launches GPT-5.6 with Massive API Price Cuts(29 posts)→

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