invokeable()
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Step 3.5 Flash

model step-3.5-flash

Draft entry — numbers not yet verified against primary sources.

256K
context
256K
max output
$0.10/M
input
$0.30/M
output
2025-01
knowledge cutoff
1
providers

01Providers

ProviderProvider model IDIn $/MOut $/MContextStatus
OpenRouter stepfun/step-3.5-flash 0.10 0.30 262K live

02Invoke

provider
language

  

  



03Benchmarks · vendor-reported unless verified
Artificial Analysis Coding Index (index) index31.6




SciCode percent correct40.4%




Terminal-Bench Hard (success rate) success rate27.3




SWE-bench Verified (resolved) resolved74.4




04Related
Step 3.7 Flash2026-05Step 3.5 Flash 26032026-04


05Sources · where these numbers come from
  1. https://github.com/sst/models.dev
  2. https://openrouter.ai/models
  3. https://platform.stepfun.com/docs
  4. https://huggingface.co/stepfun-ai
  5. https://openrouter.ai/docs
  6. https://openrouter.ai/stepfun/step-3.5-flash