Step 3.5 Flash 2603
StepFun开源权重Apache 2.0 · 商用许可
描述
Step-3.5-Flash is StepFun's fast, cost-effective text model optimized for quick inference. Built on their Step3 architecture, it offers strong performance across text tasks with low latency and efficient token usage, ideal for production workloads requiring speed and cost efficiency.
发布日期
2026-04-02
参数规模
196.0B
上下文长度
256K
支持模态
image, text
能力雷达图
25
general
39
coding
83
reasoning
55
science估算
70
agents
80
multimodal
Science 在缺少专门科学评测时使用推理能力代理估算。
排行榜排名
基准测试分数 (LLM Stats)
Agents
Tau-bench
88.2%自报
BrowseComp
69.0%自报
Terminal-Bench 2.0
51.0%自报
Code
SWE-Bench Verified
74.4%自报
General
LiveCodeBench v6
86.4%自报
Math
AIME 2025
97.3%自报
IMO-AnswerBench
85.4%自报
AA 评测指数
Intelligence Index26.0
Tau20.9
Gpqa0.8
Ifbench0.7
Lcr0.5
Scicode0.4
Terminalbench Hard0.3
Hle0.2
LLM Stats 分类评分
Math90
General90
Reasoning80
Search70
Frontend Development70
Agents70
Tool Calling70
Code60
定价
输入价格$0.1 / 1M tokens
输出价格$0.3 / 1M tokens
混合价格(3:1)$0.15 / 1M tokens
缓存读取价格$0.02 / 1M tokens
速度
Tokens/秒206.4
首Token延迟1.01s
首回答延迟10.70s
供应商价格排行
供应商价格排行
10 个供应商
最便宜: StepFun最贵: StepFun AI
供应商输入输出
1StepFun最便宜
$0
$0
2OpenRouter
$0.09
$0.3
3Vercel AI Gateway
$0.09
$0.3
4NanoGPT
$0.1
$0.3
5SiliconFlow (China)
$0.1
$0.3
6ZenMux
$0.1
$0.3
7Kilo Gateway
$0.1
$0.3
8SiliconFlow
$0.1
$0.3
9routing.run
$0.1
$0.3
10StepFun AI
$0.1
$0.3
比较该模型在不同 API 供应商之间的定价。