OpenAI has announced the release of GPT-OSS, a family of two open-weight language models—gpt-oss-120b and gpt-oss-20b—under the permissive Apache 2.0 license, marking its first major open-weight offering since GPT-2. The announcement, published on August 5, 2025, emphasizes that these models deliver state-of-the-art reasoning performance at a fraction of the cost associated with proprietary alternatives, and […]
gpt-oss-20b is a portable, open‑weight reasoning model offering o3‑mini‑level performance, agent-friendly tool use, and full chain-of-thought support under a permissive license. While it’s not as powerful as its 120 B counterpart, it’s uniquely suited for on-device, low-latency, and privacy-sensitive deployments. Developers should weigh its known compositional limitations, especially on knowledge-heavy tasks, and tailor safety precautions accordingly.
Model Type: Chat
