Models

Sparse attention

Sparse attention computes attention only for selected token pairs.

Quick definition

Sparse attention computes attention only for selected token pairs.

  • Category: Models
  • Focus: model capability and fit
  • Used in: Choosing a model that fits latency and cost constraints.

What it means

It scales better than dense attention on long sequences. In models workflows, sparse attention often shapes model capability and fit.

How it works

Model architecture and scale determine capability. Context length, parameter count, and modality support vary across models.

Why it matters

Model architecture affects capability, context length, and speed.

Common use cases

  • Choosing a model that fits latency and cost constraints.
  • Selecting longer context for document-heavy workflows.
  • Using specialized models for code, vision, or speech.

Example

Combine local and global attention.

Pitfalls and tips

Bigger is not always better. Match the model to the task and evaluate in production.

In BoltAI

In BoltAI, this shows up in model selection and configuration.