Yhn Culture Music first seen 12 h ago, last 7 min ago, peak #5

StepFun's Step 5 Preview with 1M context appears on OpenRouter

Original: Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

Chinese AI firm StepFun's Step 5 Preview, a mixture-of-experts model with a 1 million-token context window, is now listed on the OpenRouter API platform. The listing suggests a wider public release is underway, with observers noting the large context length as the model joins a growing roster of Chinese frontier models accessible to international developers.

Why now: A new Chinese frontier model with an unusually large context window becoming available internationally is notable for developers tracking the AI model race.

StepFun Step 5 Preview OpenRouter

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Rank over time, top of the chart is #1. 2 snapshots from 22 min ago to 7 min ago.

Evidence

Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter · AnneWodell · 118

API: https://socialmediatrends-api.osmike.com/v1/trends/1506221