GPT-5.6: OpenAI's new pitch is cheaper per task, not just smarter — verify it on your workload before you switch
· 10 min read
Models · AI News
The frontier race just changed lanes: from smarter to cheaper per task
Benchmark pointsToken economics
OpenAI shipped GPT-5.6 on July 9 — a family of three models (Luna, Terra, Sol) — and the headline claim isn't a leaderboard score. It's an efficiency number: frontier coding performance on less than half the output tokens. If you build agents, that's a claim about your bill, not about bragging rights. It's also exactly the kind of claim you should measure yourself.