BrianOnAIOpenAI: gpt-oss-20b
byOpenAI
gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for lower-latency inference and deployability on consumer or single-GPU hardware. The model is trained in OpenAI’s Harmony response format and supports reasoning level configuration, fine-tuning, and agentic capabilities including function calling, tool use, and structured outputs.
Pricing
Input
$0.03 / 1M tokens
Output
$0.14 / 1M tokens
Specifications
Context Window131K tokens
Max Output— tokens
Modalitytext
Input Typestext
Output Typestext
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