gpt-oss-20b (free) chat
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...
Capabilities
Context Window 131k tokens
Max Output 8k tokens
Inputs
Outputs
Pricing (per 1M tokens)
Input $-
Output $-
Cache Read -
Cache Write -
Supported Parameters
include_reasoningmax_tokensreasoningseedstoptemperaturetool_choicetools