Cassie Blue vs Robbyant R1
Side-by-side comparison of Cassie Blue (Agility Robotics, Inc.) and Robbyant R1 (Ant Lingbo Technology) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Cassie BlueUnited States
- Robbyant R1China
Year First Available
- Cassie Blue2009
- Robbyant R12025
Verified Deployments
- Cassie Blue0 Deployments
- Robbyant R10 Deployments
Layer 2: Operational
Price
- Cassie BlueContact for quote
- Robbyant R1$55,000 USD
Availability Status
- Cassie BlueACTIVE
- Robbyant R1ACTIVE
Physical Form Factor
Height
- Cassie Blue182.88 mm
- Robbyant R1170 mm
Weight
- Cassie Blue55 kg
- Robbyant R1110 kg
Mobility Type
- Cassie Bluebipedal
- Robbyant R1—
Humanoid Subtype
- Cassie Blueresearch platform
- Robbyant R1—
Walking Speed
- Cassie Blue3 m/s
- Robbyant R11.5 m/s
Running Capable
- Cassie Bluerun capable
- Robbyant R1—
Stair Climbing
- Cassie BlueYes
- Robbyant R1No
Terrain
- Cassie Bluesnow, rocks, stairs
- Robbyant R1flat indoor, uneven outdoor
Payload & Dexterity
Total DOF
- Cassie Blue10
- Robbyant R134
Arm DOF
- Cassie Blue—
- Robbyant R12
Bimanual Coordination
- Cassie Blue—
- Robbyant R1No
Compute & AI
Onboard Compute
- Cassie BluePC mounted on the upper body
- Robbyant R1MX6800 depth engine chip
VLM Capable
- Cassie Blue—
- Robbyant R1No
Imitation Learning
- Cassie Blue—
- Robbyant R1No
Programming
- Cassie Blue—
- Robbyant R1Open-source
Battery & Power
Battery Swap
- Cassie Blue—
- Robbyant R1No
Software
SDK Languages
- Cassie Blue—
- Robbyant R1Python
ROS Support
- Cassie Blue—
- Robbyant R1No
Open API
- Cassie Blue—
- Robbyant R1Yes
Reliability
Deployment Maturity
- Cassie Blueprototype
- Robbyant R1commercial
Commercial
Price (USD)
- Cassie BlueContact for quote
- Robbyant R1$55,000 USD
Price Tier
- Cassie Blue—
- Robbyant R140-80K
Applications
- Cassie Blueresearch
- Robbyant R1hospitality, medical assistance, tour guiding, cooking
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | China |
| Year First Available (values differ) | 2009 | 2025 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Contact for quote | $55,000 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 182.88 mm | 170 mm |
| Weight (values differ) | 55 kg | 110 kg |
| Mobility Type (values differ) | bipedal | — |
| Humanoid Subtype (values differ) | research platform | — |
| Walking Speed (values differ) | 3 m/s | 1.5 m/s |
| Running Capable (values differ) | run capable | — |
| Stair Climbing (values differ) | Yes | No |
| Terrain (values differ) | snow, rocks, stairs | flat indoor, uneven outdoor |
| Payload & Dexterity | ||
| Total DOF (values differ) | 10 | 34 |
| Arm DOF (values differ) | — | 2 |
| Bimanual Coordination (values differ) | — | No |
| Compute & AI | ||
| Onboard Compute (values differ) | PC mounted on the upper body | MX6800 depth engine chip |
| VLM Capable (values differ) | — | No |
| Imitation Learning (values differ) | — | No |
| Programming (values differ) | — | Open-source |
| Battery & Power | ||
| Battery Swap (values differ) | — | No |
| Software | ||
| SDK Languages (values differ) | — | Python |
| ROS Support (values differ) | — | No |
| Open API (values differ) | — | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | prototype | commercial |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $55,000 USD |
| Price Tier (values differ) | — | 40-80K |
| Applications (values differ) | research | hospitality, medical assistance, tour guiding, cooking |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Payload, Payload (Peak), Hand DOF, Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Compute Platform, Foundation Models, Teleoperation, Runtime, Battery Capacity, Charging Time, Charging Method, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Human Detection Method, Safe Speed Near Humans, Simulation Platforms, Air-Gap Capable, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Pricing Model, Developer Unit Price, Delivery Lead Time, Warranty, Production Pilots
best in categoryweakest in categoryvalues differ
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | Cassie Blue | Robbyant R1 |
|---|---|---|
| Investment | No price | $55,000 |
| Payback period | — | 13.2 mo |
| Net savings (5 yr) | — | $195,000 |
| ROI (5 yr) | — | +355% |
Cassie Blue has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes Cassie Blue and Robbyant R1?
Cassie Blue is made by Agility Robotics, Inc., based in US. Robbyant R1 is made by Ant Lingbo Technology, based in CN.
When were Cassie Blue and Robbyant R1 launched?
Cassie Blue launched in 2009. Robbyant R1 launched in 2025.
How do Cassie Blue and Robbyant R1 compare on the Robo Index?
Cassie Blue grades BB on the Robo Index. Robbyant R1 grades AA. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are Cassie Blue and Robbyant R1 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 Robbyant R1?
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
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About this comparison
Cassie Blue vs Robbyant R1 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 Robo Index is calculated.