GPT‑5.6 turns the model race into a portfolio race.
OpenAI’s newest family is less about one benchmark winner and more about matching the cost and intensity of intelligence to the work.
What happened
OpenAI released GPT‑5.6 Sol, Terra, and Luna for general availability across ChatGPT, Codex, and the API, with different capability and price profiles.
Why it matters
Buyers now have a clearer reason to route work by difficulty instead of treating every request as a flagship-model job.
What to watch
Whether independent tests reproduce the claimed performance-per-dollar gains—and whether teams build routing discipline instead of simply selecting the highest tier.
The caveat
The launch’s benchmark, cost, and safety comparisons are OpenAI claims. Independent testing has not caught up yet.