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Stepfun

Step 3.5 Flash

stepfun/step-3.5-flash

256K context·256K max output·text->text

Input

$0.1000

per 1M tokens

Output

$0.3000

per 1M tokens

Cache Read

-

not available

Cache Write

-

not available

Quality Benchmarks

FrontierValue: Infinity

Coding

Code generation, completion, debugging

78.3

Math

Competition math, calculus, olympiad

78.3

Reasoning

Logic, spatial, puzzle solving

78.3

Language

Summarization, paraphrase, writing

78.3

Overall

78.3

Source: LiveBench (livebench.ai) / Scores 0-100

Capabilities

VisionTool UseReasoningPrompt Caching

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