GPT-OSS is the open-weight GPT family OpenAI released in 2025 and marks a clear shift away from the company's long-standing closed-API posture. It sits in the same competitive class as Llama 4, DeepSeek V3, and Qwen 3, and signals OpenAI's direct entry into the Open-source Race. The release reinforces that Open Source LLM is no longer a niche corner of the ecosystem. With weights public, developers gain a new option for running models locally or via gateways like OpenRouter.
MEVZU N°124ISTANBULYEAR I — VOL. III
Glossary · Beginner · 2025
GPT-OSS
OpenAI's 2025 release of an open-weight GPT model family.
- EN — English term
- GPT-OSS
- TR — Turkish term
- GPT-OSS