Step 3.7 Flash
A high-efficiency Flash model for real-world agents.
Step 3.7 Flash is StepFun's 198B-parameter sparse MoE multimodal/vision-language model release for real-world agents, with about 11B activated parameters, native image and video understanding, tool calling, coding-agent, search, and long-context reasoning support.
Pricing
Model profile · Current snapshot
Input / 1M
$0.20
Output / 1M
$1.15
Blended / 1M
$0.438
Output TPS
376
TTFT (s)
0.74
Model Intelligence
Context window
256,000 tokens
Arena ranking
31
Benchmarkable
Yes
Model level
release
Intelligence Index
30.9
Coding Index
39.6
GPQA
0.81
HLE
0.21
SciCode
0.4
IFBench
0.67
LCR
0.7
TerminalBench Hard
0.36
TAU2
0.99
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