Due to the massive price cut of Luna today, I've created a new type of Pareto graph that I haven't seen before. A combined planning/implementation set.

Since AI keeps recommending using different models for plan/execute, I asked it to combine them into a single pareto frontier.

Planning → executionQuality proxyEstimated credits
Luna Max → Luna Max55.189.81
Sol Medium → Luna Max58.4026.54
Sol High → Luna Max60.5433.73
Sol High → Sol High61.70129.38
Sol High → Sol Max63.73202.88

These calculations use Artificial Analysis’s Codex-harness results: DeepSWE and Terminal-Bench for execution, and SWE-Atlas plus its Intelligence Index as planning proxies. Luna costs were reduced by 80% to reflect OpenAI’s July 30 pricing change.