StepFun: Step 3.5 Flash

Provided by OpenRouter

Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....

Specifications

Context Length
262,144 tokens
Input Price
$0.100/M
Output Price
$0.300/M
Capabilities
TextFast

About StepFun: Step 3.5 Flash

Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....

Strengths

  • Large context window (262k tokens) for long conversations
  • Fast response times for real-time interactions

Use Cases

  • Content creation and writing assistance
  • General conversations and Q&A

Limitations

Performance may vary based on query complexity, context length, and task type. Consider using higher-tier models for production-critical applications.

Sample Prompts

Try these prompts to explore StepFun: Step 3.5 Flash's capabilities:

Explain quantum computing in simple terms like I'm 10 years old

Write a compelling email asking for a meeting to discuss a project proposal

Help me brainstorm creative solutions for improving team productivity

Tip: Customize these prompts to fit your specific needs and use cases.