Step 3.5 Flash
Released 2026-02 · reasoning · 262K tokens · 4 benchmarks · Open weight
Editorial notes
MoE 196B / 11B activos. Frontier open-source. AIME 2025 97.3. Superseded por Step 3.7 Flash (28-may-2026), que agrega multimodalidad.
Spec sheet
- Company
- StepFun
- Country
- CN
- Type
- reasoning
- Release
- 2026-02
- Context
- 262K tokens
- Params total
- 196B
- Params active (MoE)
- 11B
- License
- apache-2.0
- Quants
- BF16, Q8_0, Q5_K_M, Q4_K_M
- Slug
- step-3-5-flash
Benchmarks (4)
Cite this model
BibTeX · APA
BibTeX
@misc{frontier-step-3-5-flash,
title = {Step 3.5 Flash},
author = {{StepFun}},
year = {2026},
note = {Frontier Benchmarks AI atlas. Accessed 2026-06-17},
url = {https://frontierbenchmarks.com/models/step-3-5-flash}
} APA
StepFun (2026). Step 3.5 Flash [Large language model]. Frontier Benchmarks AI. Retrieved 2026-06-17, from https://frontierbenchmarks.com/models/step-3-5-flash
Citation reflects the atlas page, not the original model paper. For the paper, see the "Resources" section above.