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Model · Artificial Analysis

StepFun/Step 3.5 Flash

Benchmark data by Artificial Analysis.

Author / organizationStepFun
AccessHosted API (no weights listed here)
Price per million tokens$0.1 in · $0.3 out
Intelligence Index16.6
Tasktext-generation
Created2 February 2026
Last updated at source—
hostedtext-generation
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Popularity, last 3 days

1,660 now. Counts as reported by the source, snapshotted daily by Silytics.

Reported results

DatasetMetricValue
Artificial AnalysisGPQA0.831
Artificial AnalysisHumanity's Last Exam0.211
Artificial AnalysisIntelligence Index16.6
Artificial Analysisifbench0.6456
Artificial Analysislcr0.5
Artificial Analysistau20.9444
Artificial Analysisterminalbench hard0.2727

Reported by the model's authors in the model card. Not independently verified, and setups differ between authors, so scores from different models are not always comparable. Each value links to its source.

Price and speed history

USD per million tokens

00.30.50.8110-1510-1610-17Input · 10-15: 0.1Input · 10-16: 0.1Input · 10-17: 0.1Output · 10-15: 0.3Output · 10-16: 0.3Output · 10-17: 0.3
InputOutput

Output speed (tokens per second)

00.30.50.8110-1510-1610-17Speed · 10-15: 0Speed · 10-16: 0Speed · 10-17: 0

More from StepFun

Silytics shows public metadata from Artificial Analysis and links to the original. Information may be incomplete or out of date. Last refreshed 17 October 2026. Licenses and terms of the original apply to the work itself. Not financial, legal or professional advice.