Step 5 Preview
Strong signal600B open weights, trained for long-running agents
Launched 27d ago
Signal
65
Velocity
0
What this means
6.4×Growing 6.4× faster than the typical AI Agents launch.
Compared to 244 AI Agents launches at the same age.
30%Mid-tier finish likely.
Projecting attention of 83 by end of day-1.
Prediction
Top-5 finish probability
30%
today
Projected end-of-day votes
83range 62–112
Trajectory
stable
Vote pace holding steady.
Speed vs peers
6.4×
244 AI Agents launches
About
Step 5 Preview is StepFun's open-weight MoE for coding, financial research and long-running agents. It has 600B total parameters, 27B active per token and a 1M-token context, with deployment support for vLLM, SGLang and Transformers.
AI Summary
Step 5 Preview is an open-weight mixture of experts (MoE) model with 600 billion parameters, designed for coding, financial research, and long-running agents. It supports a 1 million-token context and is compatible with vLLM, SGLang, and Transformers.
Attention & discussion velocity
Performance
Velocity0
Vote pace vs average
Momentum0
Sustained over 6h
Virality0
Spread × engagement
Engagement19
Discussion per unit of attention
Signal sources
2 of 6 active- Launch tracking9 readings since we picked it up
- AI analysisAI Agents
- Comment intelligencethread not yet analysed
- Outside discussionnot checked — domain is a storefront or shared
- Revenue signalsno match on this domain
- Editorial scoringbelow the signal threshold for this pass
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.