Updated: 30 July 2026
Benchmark snapshot: 11 July 2026
Pricing snapshot: 30 July 2026
Primary benchmark source: Artificial Analysis GPT‑5.6 launch analysis and its live LLM leaderboard
Primary pricing sources: OpenAI’s 30 July price announcement and OpenAI API pricing
Scope: the 15 combinations of Sol, Terra, and Luna at low, medium, high, xhigh, and max reasoning effort. API none, pro mode, and multi-agent/ultra execution are discussed only where they affect deployment decisions.
Practical default: Use Luna for volume, implementation, subagents, and work protected by tests or review. Use Sol when ambiguity, consequence, or failure cost is high. The July 30