Type: AI model or model family
Concepts: Agents Long Context Tool Use Mentioned alongside: StepFun Google Hacker News Huawei Kimi Recent briefs: 2026-10-08 2026-09-25
Recent Updates
- 2026-09-19: Artificial Analysis Benchmarks StepFun’s Step 5 Preview Reasoning Model (breakingnewsofficial) · artificialanalysis.ai — LLM Evals Long Context Artificial Analysis · StepFun
- 2026-09-21: StepFun Unveils Step 5 Preview: 600B MoE Foundation Model with 27B Active Parameters Optimized for Long-Horizon Agents (breakingnewsofficial) · qbitai.com — Agents Long Context Open Source LLMs Tool Use StepFun · Artificial Analysis · Anthropic · xAI · Google · OpenAI · Stanford · SpaceX · Zhipu · MiniMax Jay Liang Wenfeng Altman · Opus 5 · Step 3.5 Flash Step-3.7-Flash · GPT · K3 · V4 Flash
- 2026-09-25: Kimi Launches Browser Extension Upgrading WebBridge with Sidebar Chat and Action Recording into Reusable Skills (breakingnewsofficial) · qbitai.com — Agents Tool Use Kimi · Moonshot AI · Manus · Google · Microsoft · Meta · Huawei · StepFun 鹭羽 Mark Zuckerberg
- 2026-10-08: StepFun Launches Step 5 Preview, a 1M-Context Sparse MoE Model on OpenRouter (breakingnewsofficial) · openrouter.ai — Long Context StepFun · OpenRouter · Hacker News
FAQ
What is Step 5 Preview?
Step 5 Preview appears in the radar stream as a model or model family. This page is a living index of dated mentions and sources — open Recent Updates and Backlinks for context, not a full product brief.
What does this page track?
Dated radar mentions, source links, related concepts, and builder-relevant context for Step 5 Preview, collected automatically by GROUNDING.
When was Step 5 Preview last mentioned?
Step 5 Preview was most recently mentioned in a radar update dated 2026-10-08.
Category: Text / Language Models