GPT OSS: OpenAI’s Shocking Return to Open-Source
GPT OSS is OpenAI’s big comeback to open source AI after six years, giving developers a powerful set of language models they can use, change, and launch without limits. Released in August 2025 under the flexible Apache 2.0 license, it’s the first time since GPT-2 back in 2019 that OpenAI has shared real model weights…