Feb 5, 2026
OpenAI has a model called o3 for complex reasoning that can perform at the level of PhD individuals in various domains. Are there are other models with this capability and are they better or worse?
’s family is presented as a leap in "reasoning models" that approach or exceed PhD‑level performance on academic benchmarks, but it is not unique: competing systems—internal OpenAI variants (o1, o3‑pr...