Welcome to the gpt-oss series, OpenAI's open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases. gpt-oss-20b is used for lower latency, and local or specialized use-cases.
OpenAI gpt-oss-20b can be customized with your data to improve responses. Fireworks uses LoRA to efficiently train and deploy your personalized model
Learn MoreImmediately run model on pre-configured GPUs and pay-per-token
Learn MoreOn-demand deployments give you dedicated GPUs for OpenAI gpt-oss-20b using Fireworks' reliable, high-performance system with no rate limits.
Learn Moregpt-oss-20b is an open-weight 21.5B parameter model developed by OpenAI. It is part of the "gpt-oss" series, optimized for lower latency and local or specialized tasks. The model was trained using OpenAI's Harmony response format and supports configurable reasoning depth for agentic applications.
OpenAI
131072
Available
Available
$0.07 / $0.3
