OpenAI: o3 Pro
OpenAIllm
Published June 10, 2025
About
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently better answers. Note that BYOK is required for this model. Set up here: https://openrouter.ai/settings/integrations
Try OpenAI: o3 Pro
Test this model in the Sandbase Playground with your own prompts.
Open in Playground