OpenAI's GPT-5.6 Luna tier launches at $1 per million input tokens, slashing AI costs up to 25x and accelerating health intelligence applications.

OpenAI is set to launch GPT-5.6 publicly this week after the US government cleared a wider rollout following national security checks. The new model family includes GPT-5.6 Sol,…

OpenAI dropped GPT-5.6 in three tiers. But the real problem in AI coding has not changed.