Skip to content
  1.  
  2. © 2023 – 2025 OpenRouter, Inc

    OpenAI: o1

    openai/o1

    Created Dec 17, 2024200,000 context
    $15/M input tokens$60/M output tokens$21.68/K input imgs

    The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason using chain of thought.

    The o1 models are optimized for math, science, programming, and other STEM-related tasks. They consistently exhibit PhD-level accuracy on benchmarks in physics, chemistry, and biology. Learn more in the launch announcement.

    Performance for o1

    Compare different providers across OpenRouter