Cassie Blue vs Elf 3 Humanoid Robot
Side-by-side comparison of Cassie Blue (Agility Robotics, Inc.) and Elf 3 Humanoid Robot (BXI Robotics) — specs, pricing, Robolist Product Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Cleaning & Facilities buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Cassie BlueUnited States
- Elf 3 Humanoid RobotChina
Year First Available
- Cassie Blue2009
- Elf 3 Humanoid Robot—
Verified Deployments
- Cassie Blue0 Deployments
- Elf 3 Humanoid Robot0 Deployments
Layer 2: Operational
Availability Status
- Cassie BlueACTIVE
- Elf 3 Humanoid RobotACTIVE
Physical Form Factor
Weight
- Cassie Blue55 kg
- Elf 3 Humanoid Robot—
Height
- Cassie Blue182.88 mm
- Elf 3 Humanoid Robot—
Mobility Type
- Cassie Bluebipedal
- Elf 3 Humanoid Robotbipedal
Humanoid Subtype
- Cassie Blueresearch platform
- Elf 3 Humanoid Robotfull bipedal
Walking Speed
- Cassie Blue3 m/s
- Elf 3 Humanoid Robot—
Running Capable
- Cassie Bluerun capable
- Elf 3 Humanoid Robot—
Stair Climbing
- Cassie BlueYes
- Elf 3 Humanoid Robot—
Terrain
- Cassie Bluesnow, rocks, stairs
- Elf 3 Humanoid Robot—
Payload & Dexterity
Total DOF
- Cassie Blue10
- Elf 3 Humanoid Robot—
Compute & AI
Onboard Compute
- Cassie BluePC mounted on the upper body
- Elf 3 Humanoid Robot—
Programming
- Cassie Blue—
- Elf 3 Humanoid Robotcode_python
Software
SDK Languages
- Cassie Blue—
- Elf 3 Humanoid Robotcode_python
Open API
- Cassie Blue—
- Elf 3 Humanoid RobotYes
Reliability
Deployment Maturity
- Cassie Blueprototype
- Elf 3 Humanoid Robotprototype
Commercial
Applications
- Cassie Blueresearch
- Elf 3 Humanoid Robotresearch
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | China |
| Year First Available (values differ) | 2009 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Weight (priority for Cleaning & Facilities buyers) (values differ) | 55 kg | — |
| Height (values differ) | 182.88 mm | — |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype (values differ) | research platform | full bipedal |
| Walking Speed (values differ) | 3 m/s | — |
| Running Capable (values differ) | run capable | — |
| Stair Climbing (values differ) | Yes | — |
| Terrain (values differ) | snow, rocks, stairs | — |
| Payload & Dexterity | ||
| Total DOF (values differ) | 10 | — |
| Compute & AI | ||
| Onboard Compute (values differ) | PC mounted on the upper body | — |
| Programming (values differ) | — | code_python |
| Software | ||
| SDK Languages (values differ) | — | code_python |
| Open API (values differ) | — | Yes |
| Reliability | ||
| Deployment Maturity | prototype | prototype |
| Commercial | ||
| Applications (values differ) | research | research |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Price Range (USD), Battery / Shift Runtime, Payload, Payload (Peak), Arm DOF, Hand DOF, Arm Reach, Grip Strength, Manipulation Repeatability, Bimanual Coordination, Tool Use, Compute Platform, VLM Capable, Foundation Models, Imitation Learning, Teleoperation, Runtime, Battery Capacity, Charging Time, Charging Method, Battery Swap, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Human Detection Method, Safe Speed Near Humans, ROS Support, Simulation Platforms, Air-Gap Capable, MTBF, Task Success Rate, IP Rating, Noise Level, Price (USD), Price Tier, RaaS / Month, Pricing Model, Developer Unit Price, Delivery Lead Time, Warranty, Production Pilots
best in categoryweakest in categoryvalues differ
Trade-offs at a glance
Frequently asked
Who makes Cassie Blue and Elf 3 Humanoid Robot?
Cassie Blue is made by Agility Robotics, Inc., based in US. Elf 3 Humanoid Robot is made by BXI Robotics, based in CN.
How do Cassie Blue and Elf 3 Humanoid Robot compare on the Robolist Product Score?
Cassie Blue scores 44/100. Elf 3 Humanoid Robot scores 0/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Are Cassie Blue and Elf 3 Humanoid Robot in the same category?
Both robots are classified as Humanoid on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Humanoid robots?
Hardware cost is one input. Humanoid TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time.
What should a buyer ask vendors when choosing between Cassie Blue and Elf 3 Humanoid Robot?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Vendor Selection for Humanoids: The 10 Questions You Must Ask.
Going deeper — picking the right robot
Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time
8 min readHumanoid Robots
Vendor Selection for Humanoids: The 10 Questions You Must Ask
10 min readHumanoid Robots
Running a Humanoid Pilot: Scope, Success Criteria, and Exit Options
9 min readHumanoid Robots
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
About this comparison
Cassie Blue vs Elf 3 Humanoid Robot compares two robots in the humanoid category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robolist Product Score is calculated.