Ai2, a nonprofit AI research institute based in Seattle, has released a new AI model called Tulu3-405B.Tulu3-405B outperforms DeepSeek V3, a leading system by Chinese AI company DeepSeek, and beats OpenAI's GPT-4o on certain AI benchmarks.Unlike GPT-4o and DeepSeek V3, Tulu3-405B is open source and freely available for replication from scratch.The model, containing 405 billion parameters, achieved competitive performance through reinforcement learning with verifiable rewards.