Step 3.7 Flash
stepfun/step-3.7-flash
Newer StepFun flash model for faster agents, coding, and multimodal prompts
Capabilities
ReasoningYes
Tool callingYes
Structured outputNo
TemperatureSupported
AttachmentYes
Open weightsYes
Limits
Context256,000 tokens
Max input256,000 tokens
Max output256,000 tokens
Details
FamilyN/A
Knowledge cutoff2026-03-01
Release date2026-05-29
Last updated2026-05-29
Modalities
Inputtext, image, video
Outputtext
Benchmarks
SWE-Bench Pro
56.3
resolve rate
SWE-Bench Verified
76.5
resolved
Terminal-Bench
59.6
success rate
Humanity's Last Exam
47.2
accuracy
BrowseComp
75.8
accuracy
Toolathlon
49.5
success rate
GDPval
45.8
wins or ties
ClawEval
67.1
pass^3
Artificial Analysis Coding Index
37.1
index
SciCode
40
percent correct
Terminal-Bench Hard
35.6
success rate
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A