OpenAI's New Open gpt-oss Models vs o4-mini: A Real-World Comparison
Together AI Blog
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Generative AI
LLMs
Open Source AI
OpenAI just made history by open-sourcing their first language models in over six years. The gpt-oss series includes two reasoning models: a 20B parameter model comparable to o3-mini, and a 120B model that supposedly rivals o4-mini. As champions of open source AI, we were excited to see how these models perform in practice.