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Step 3.5 Flash REAP 121B A11B by cerebras

By cerebras · 39 downloads
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Step 3.5 Flash REAP 121B A11B is an open-source language model by cerebras. Features: 121b LLM, VRAM: 174.7GB, Context: 256K, License: other, LLM Explorer Score: 0.23.

  Arxiv:2510.13999 Base model:finetune:stepfun-ai... Base model:stepfun-ai/step-3.5...   Compression   Conversational   Custom code   En   Moe   Pruning   Region:us   Safetensors   Sharded   Step3p5   Stepfun   Tensorflow
Model Card on HF 🤗: https://huggingface.co/cerebras/Step-3.5-Flash-REAP-121B-A11B 

Step 3.5 Flash REAP 121B A11B Parameters and Internals

LLM NameStep 3.5 Flash REAP 121B A11B
Repository 🤗https://huggingface.co/cerebras/Step-3.5-Flash-REAP-121B-A11B 
Base Model(s)  stepfun-ai/Step-3.5-Flash   stepfun-ai/Step-3.5-Flash
Model Size121b
Required VRAM174.7 GB
Updated2026-08-02
Maintainercerebras
Model Typestep3p5
Model Files  4.5 GB: 1-of-64   3.8 GB: 2-of-64   3.6 GB: 3-of-64   3.9 GB: 4-of-64   3.9 GB: 5-of-64   3.6 GB: 6-of-64   3.9 GB: 7-of-64   3.8 GB: 8-of-64   3.6 GB: 9-of-64   3.9 GB: 10-of-64   3.9 GB: 11-of-64   3.6 GB: 12-of-64   3.9 GB: 13-of-64   3.8 GB: 14-of-64   3.6 GB: 15-of-64   3.9 GB: 16-of-64   3.9 GB: 17-of-64   3.6 GB: 18-of-64   3.9 GB: 19-of-64   3.8 GB: 20-of-64   3.6 GB: 21-of-64   3.9 GB: 22-of-64   3.9 GB: 23-of-64   3.6 GB: 24-of-64   3.9 GB: 25-of-64   3.8 GB: 26-of-64   3.6 GB: 27-of-64   3.9 GB: 28-of-64   3.9 GB: 29-of-64   3.6 GB: 30-of-64   3.9 GB: 31-of-64   3.8 GB: 32-of-64   3.6 GB: 33-of-64   3.9 GB: 34-of-64   3.9 GB: 35-of-64   3.6 GB: 36-of-64   3.9 GB: 37-of-64   3.8 GB: 38-of-64   3.6 GB: 39-of-64   3.9 GB: 40-of-64   3.9 GB: 41-of-64   3.6 GB: 42-of-64   3.9 GB: 43-of-64   3.8 GB: 44-of-64   3.6 GB: 45-of-64   3.9 GB: 46-of-64
Supported Languagesen
Model ArchitectureStep3p5ForCausalLM
Licenseother
Context Length262144
Model Max Length262144
Vocabulary Size128896
Torch Data Typebfloat16