Explore StepFun: Step 3.5 Flash (free)

Stepfun: StepFun: Step 3.5 Flash (free)

Input: text Output: text Context: 256,000 tokens Release: 2026-01-29

Use Cases

Here are a few ways teams apply StepFun: Step 3.5 Flash (free) in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Meeting transcription & notes

Multilingual audio translation

Audio understanding

Reliable drafting

Specs

Overview
Vendor
stepfun
Model ID
stepfun/step-3.5-flash:free
Release
2026-01-29
Modalities & context
Input
text
Output
text
Context
256,000 tokens
Parameters & defaults

Supported parameters: frequency_penalty, include_reasoning, max_tokens, reasoning, stop, temperature, tools, top_p

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: StepFun: Step 3.5 Flash (free)

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:
Write 150 words on how AI might positively upend work, leisure and creativity
AI promises not to replace us, but to radically augment human potential, upending traditional boundaries for the better. In **work**, it will automate mundane tasks, freeing us for strategic thinking, empathy, and complex problem-solving. New roles in AI oversight, ethics, and human-machine collaboration will emerge, shifting value from routine labor to creativity and judgment. For **leisure**, hyper-personalization will redefine entertainment and wellness. AI curators will design bespoke travel, learning, and media experiences, while intelligent companions could enrich social connection and mental health, making downtime more restorative and engaging. Most profoundly, **creativity** will be democratized and amplified. AI tools will act as collaborative partners, helping anyone prototype ideas, compose music, or draft stories, lowering technical barriers. The focus will shift from execution to vision, emotion, and meaning—the uniquely human heart of art. Ultimately, AI’s positive upending lies in its power to elevate our inherent strengths, transforming how we work, play, and imagine.
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up.end
/ˌəpˈend/
verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.