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Model · Artificial Analysis

StepFun/Step 3.5 Flash 2603

Benchmark data by Artificial Analysis.

Author / organizationStepFun
AccessHosted API (no weights listed here)
Price per million tokens$0.1 in · $0.3 out
Intelligence Index17
Tasktext-generation
Created2 April 2026
Last updated at source—
hostedtext-generation
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Popularity, last 2 days

1,700 now. Counts as reported by the source, snapshotted daily by Silytics.

Reported results

DatasetMetricValue
Artificial AnalysisGPQA0.826
Artificial AnalysisHumanity's Last Exam0.245
Artificial AnalysisIntelligence Index17
Artificial Analysisifbench0.6653
Artificial Analysislcr0.63
Artificial Analysistau20.8743
Artificial Analysisterminalbench hard0.3258

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

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

Output speed (tokens per second)

00.30.50.8110-1510-16Speed · 10-15: 0Speed · 10-16: 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 Information may be incomplete or out of date.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 16 October 2026. Licenses and terms of the original apply to the work itself. Not financial, legal or professional advice.