OpenAI takes on Meta by launching free and customisable AI models
OpenAI has released two open-weight large language models—gpt-oss-120b and gpt-oss-20b-two—that anyone can download and fine-tune for free, taking direct aim at Meta’s Llama series. CEO Sam Altman says the move is about “democratic values” and broad access, while experts warn open AI models could be repurposed for harmful uses. The 120B model nearly matches OpenAI’s closed GPT-4-mini on reasoning tests. Meanwhile, Google DeepMind unveiled Genie 3, a “world model” to train AI agents in realistic simulations as a step toward artificial general intelligence.