OpenAI: gpt-oss-120b

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized to run on a single H100 GPU with native MXFP4 quantization. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.

Description

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized to run on a single H100 GPU with native MXFP4 quantization. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.

ArchitectureАрхитектура

Modality:
text->text
InputModalities:
text
OutputModalities:
text
Tokenizer:
GPT

ContextAndLimits

ContextLength:
131072 Tokens
MaxResponseTokens:
131072 Tokens
Moderation:
Disabled

PricingRUB

Request:
Image:
WebSearch:
InternalReasoning:
Prompt1KTokens:
Completion1KTokens:

DefaultParameters

Temperature:
0
StartChatWith OpenAI: gpt-oss-120b

UserComments