Step-2 (trillion-parameter)
StepFun announced Step-2, described as a trillion-parameter LLM, alongside the multimodal Step-1.5V, at WAIC 2024.
Step-2 was positioned as StepFun's flagship trillion-parameter model; architecture details and benchmarks were not in any primary source I could open.
- Date
- 2024-07
- Lab
- StepFun
- Kind
- model
- Access
- closed API
Single secondary source, Wikipedia, which lists Step-1.5V, Step-1X and Step-2 in July 2024. Exact day, architecture and numbers not verified.
Sources
This record was partly confirmed: some claims could not be checked on 6 October 2026. How we check