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Step-3.5-Flash
StepFun · open weight · step-3.5-flash
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.
Benchmark scores
| Benchmark | Score |
|---|---|
| AIME 2025 | 0.97 |
| Tau-bench | 0.88 |
| SWE-Bench Verified | 0.74 |
Pricing
- StepFun$0.10 / $0.40
Input / output per 1M tokens
AA metrics
No Artificial Analysis link yet.
Arena Elo
- No Arena snapshot linked.