OpenAI GPT-oss — First Open-Weight Models (120B + 20B)

GitHub·medium signal

OpenAI's first serious open-weight release. gpt-oss-120b achieves near-parity with o4-mini on reasoning, runs on single 80GB GPU. gpt-oss-20b matches o3-mini, runs on 16GB RAM devices. Already being fine-tuned across community. Seismic shift — OpenAI competing directly with Llama and DeepSeek in open weights.