OpenAI announced a program to provide 100,000 scientists, mathematicians and engineers with free access to its frontier AI models — including GPT-5.6 Sol Pro. What the Program Actually IncludesApproved researchers receive access to the full GPT‑5.6⁠ family across ChatGPT, ChatGPT Work and Codex. The three tiers are designed for different workloads: GPT-5.6 Luna handles lighter tasks quickly, GPT-5.6 Terra balances capability with efficiency for everyday research, and GPT-5.6 Sol is positioned for the hardest scientific and mathematical problems. On FrontierMath Tier 4, a benchmark for research-level mathematical reasoning, GPT-5.6 Sol scores 83%, compared with 72.5% for its predecessor GPT-5.5. On GeneBench Pro, which tests complex biological data analysis, GPT-5.6 Sol Pro solves 31.5% of tasks.