StepFun really stepped up its game (no pun intended), releasing a 196B-A11B MoE with strong metrics across the board. It is especially strong in math benchmarks, beating out models that are several times larger than it.
Specs
Params196B (11B active)
LicenseApache-2.0
Capability · Artificial Analysis
AA Index
26.0
Months Behind Frontier
11.2 mo
claude-3-7-sonnet-thinking
24 Feb 2025
Adoption · Hugging Face
RAM @ 30d
Relative Adoption Metric: 0.82×. Below benchmark. Measured at 30 days.
Hugging Face Downloads
161K
last 30d
1.5M
all time
HF Likes
833
Relative Adoption Metric contextualizes downloads against the model's size bucket.
Inference · OpenRouter
Tokens/Day
—
below top 50 this week
Peak Tokens/Day
244B
19 Mar 2026
Peak Rank
#1
19 Mar 2026
OpenRouter publishes daily token totals for its ~50 most-served models. Days missing from the chart mean Step-3.5-Flash fell below that cutoff — not zero usage. OpenRouter logs usage separately per dated model version and per variant (like ":free"); the hub combines provider variants while keeping separately cataloged releases distinct.
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