Looks to be the ~same intelligence as gpt-oss-120B, but about 10x slower and 3x more expensive?
https://artificialanalysis.ai/models/deepseek-v3-1-reasoning
replies(5):
https://artificialanalysis.ai/models/deepseek-v3-1-reasoning
https://openrouter.ai/openai/gpt-oss-120b and https://openrouter.ai/deepseek/deepseek-chat-v3.1 for the same providers is probably better, although gpt-oss-120b has been around long enough to have more providers, and presumably for hosters to get comfortable with it / optimize hosting of it.