Robbyant R1 vs Zeroth M1
Side-by-side comparison of Robbyant R1 (Ant Lingbo Technology) and Zeroth M1 (Zeroth Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Robbyant R1China
- Zeroth M1United States
Year First Available
- Robbyant R12025
- Zeroth M12026
Verified Deployments
- Robbyant R10 Deployments
- Zeroth M10 Deployments
Layer 2: Operational
Price
- Robbyant R1$55,000 USD
- Zeroth M1$2,499 USD
Battery / Shift Runtime
- Robbyant R1—
- Zeroth M12 hrs
Availability Status
- Robbyant R1ACTIVE
- Zeroth M1ACTIVE
Physical Form Factor
Height
- Robbyant R1170 mm
- Zeroth M138.1 cm
Weight
- Robbyant R1110 kg
- Zeroth M128 kg
Mobility Type
- Robbyant R1—
- Zeroth M1bipedal
Humanoid Subtype
- Robbyant R1—
- Zeroth M1full bipedal
Walking Speed
- Robbyant R11.5 m/s
- Zeroth M11 m/s
Stair Climbing
- Robbyant R1No
- Zeroth M1—
Terrain
- Robbyant R1flat indoor, uneven outdoor
- Zeroth M1flat_indoor, mild_incline
Payload & Dexterity
Payload
- Robbyant R1—
- Zeroth M120 kg
Total DOF
- Robbyant R134
- Zeroth M16
Arm DOF
- Robbyant R12
- Zeroth M12
Bimanual Coordination
- Robbyant R1No
- Zeroth M1—
Compute & AI
Onboard Compute
- Robbyant R1MX6800 depth engine chip
- Zeroth M18-core Horizon Sunrise Series
VLM Capable
- Robbyant R1No
- Zeroth M1—
Imitation Learning
- Robbyant R1No
- Zeroth M1—
Programming
- Robbyant R1Open-source
- Zeroth M1no_code_gui
Battery & Power
Runtime
- Robbyant R1—
- Zeroth M12 hrs
Charging Method
- Robbyant R1—
- Zeroth M1tethered
Battery Swap
- Robbyant R1No
- Zeroth M1—
Software
SDK Languages
- Robbyant R1Python
- Zeroth M1no_code_gui
ROS Support
- Robbyant R1No
- Zeroth M1—
Open API
- Robbyant R1Yes
- Zeroth M1—
Reliability
Deployment Maturity
- Robbyant R1commercial
- Zeroth M1prototype
Commercial
Price (USD)
- Robbyant R1$55,000 USD
- Zeroth M1$2,499 USD
Price Tier
- Robbyant R140-80K
- Zeroth M120-40K
Pricing Model
- Robbyant R1—
- Zeroth M1purchase
Developer Unit Price
- Robbyant R1—
- Zeroth M1$89,999
Applications
- Robbyant R1hospitality, medical assistance, tour guiding, cooking
- Zeroth M1eldercare_assistance, education, consumer_companion
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | United States |
| Year First Available (values differ) | 2025 | 2026 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $55,000 USD | $2,499 USD |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) (values differ) | — | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 170 mm | 38.1 cm |
| Weight (values differ) | 110 kg | 28 kg |
| Mobility Type (values differ) | — | bipedal |
| Humanoid Subtype (values differ) | — | full bipedal |
| Walking Speed (values differ) | 1.5 m/s | 1 m/s |
| Stair Climbing (values differ) | No | — |
| Terrain (values differ) | flat indoor, uneven outdoor | flat_indoor, mild_incline |
| Payload & Dexterity | ||
| Payload (values differ) | — | 20 kg |
| Total DOF (values differ) | 34 | 6 |
| Arm DOF | 2 | 2 |
| Bimanual Coordination (values differ) | No | — |
| Compute & AI | ||
| Onboard Compute (values differ) | MX6800 depth engine chip | 8-core Horizon Sunrise Series |
| VLM Capable (values differ) | No | — |
| Imitation Learning (values differ) | No | — |
| Programming (values differ) | Open-source | no_code_gui |
| Battery & Power | ||
| Runtime (values differ) | — | 2 hrs |
| Charging Method (values differ) | — | tethered |
| Battery Swap (values differ) | No | — |
| Software | ||
| SDK Languages (values differ) | Python | no_code_gui |
| ROS Support (values differ) | No | — |
| Open API (values differ) | Yes | — |
| Reliability | ||
| Deployment Maturity (values differ) | commercial | prototype |
| Commercial | ||
| Price (USD) (values differ) | $55,000 USD | $2,499 USD |
| Price Tier (values differ) | 40-80K | 20-40K |
| Pricing Model (values differ) | — | purchase |
| Developer Unit Price (values differ) | — | $89,999 |
| Applications (values differ) | hospitality, medical assistance, tour guiding, cooking | eldercare_assistance, education, consumer_companion |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload (Peak), Hand DOF, Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Compute Platform, Foundation Models, Teleoperation, Battery Capacity, Charging Time, 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, 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 | Robbyant R1 | Zeroth M1 |
|---|---|---|
| Investment | $55,000 | $2,499 |
| Payback period | 13.2 mo | < 1 mo |
| Net savings (5 yr) | $195,000 | $247,501 |
| ROI (5 yr) | +355% | +9904% |
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 Robbyant R1 and Zeroth M1?
Robbyant R1 is made by Ant Lingbo Technology, based in CN. Zeroth M1 is made by Zeroth Robotics, based in US.
When were Robbyant R1 and Zeroth M1 launched?
Robbyant R1 launched in 2025. Zeroth M1 launched in 2026.
How much does Robbyant R1 cost compared to Zeroth M1?
Robbyant R1 is listed at $55,000. Zeroth M1 is listed at $2,499.
How do Robbyant R1 and Zeroth M1 compare on the Robo Index?
Robbyant R1 grades AA on the Robo Index. Zeroth M1 grades A. 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 Robbyant R1 and Zeroth M1 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 Robbyant R1 and Zeroth M1?
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
Robbyant R1 vs Zeroth M1 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.