o1
OpenAI's flagship reasoning model trained with reinforcement learning to think through complex problems step-by-step before responding. Excels at maths, science, and multi-step logic at the cost of higher latency.
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OpenAI's most powerful reasoning model, using extended chain-of-thought to tackle the hardest problems in mathematics, science, and coding. o3 sets new standards on GPQA and competitive maths at the cost of higher latency and price.
Anthropic's most powerful and intelligent model, built for the most demanding tasks where quality outweighs cost. Claude Opus 4 leads on complex multi-step reasoning, graduate-level science, and nuanced long-form writing.
xAI's most capable model, trained on a 100,000-GPU cluster and setting new benchmarks in mathematics and scientific reasoning. Grok 3 integrates real-time data from the X platform and leads the Arena ELO leaderboard among commercial models.