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Models

  • Rowe 1.0

Products

  • Four Cad
  • 3D Spatial Mapping

Use cases

  • CAD Reasoning
  • Design Review
  • Simulation Triage
  • Assembly Planning

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Get started

  • Overview
  • Quickstart
  • Models
  • Pricing
  • API keys
  • Latest: Rowe 1.0

Products

  • Four Cad

Core concepts

  • Spatial reasoning
  • Point clouds
  • Images and sensors
  • Structured output
  • Responses API
  • Usage and cost
  • Errors

Responses API

  • Overview
  • Create a response
  • Request schema
  • Response schema
  • Authentication

Model guides

  • Fit checks
  • Stability analysis
  • Placement
  • Embeddings
  • Prediction
  • Action planning
  • Optimization

Reference

  • Models endpoint
  • Responses
  • Request fields
  • Response fields
  • Error codes

ROWE API DOCS

Rowe API

Build with Rowe 1.0 through the Four Echelon Responses API. Send point clouds, images, sensor readings, goals, and temporal scene context, then receive typed spatial outputs, usage metadata, and optional renderable reasoning_scene data.

Recommended path

1

Make your first API call

Create a key and send spatial input to Rowe 1.0.

2

Understand the Responses API

Learn the request and response structure.

3

Choose the right task

Use fit, placement, prediction, action, or optimization based on your workflow.

4

Prepare for production

Handle errors, usage metadata, and request ids.

Build paths

Responses API

Make direct spatial model requests with typed outputs.

Point cloud workflows

Represent objects and spaces with grouped 3D points.

Structured output

Consume fit checks, predictions, placements, and actions.

Model guides

Apply Rowe to fit, stability, placement, prediction, and optimization.

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