GR-1 vs Forerunner K1: Specs, Price & ROS Support Compared (2024)
Fourier Intelligence vs Kepler Robotics — independent, side-by-side analysis.
Quick Verdict
GR-1 leads in higher payload, while Forerunner K1 leads in longer runtime. The two robots are evenly matched, each excelling in different areas.
GR-1
Fourier Intelligence
Forerunner K1
Kepler Robotics
DNA Fingerprint Overlay
GR-1 Forerunner K1
Specifications
~$150,000–$170,000Price$30,000
165 cmHeight178 cm
55 kgWeight85 kg
40DOF40
50 kgPayload25 kg
1hRuntime8h
1.39 m/sSpeed—
YesStairsYes
NoLiDARNo
NVIDIA Isaac Lab ecosystemComputeN/A
Task Capabilities
?Pick up a box from shelf✓
?Open a door handle◔
?Pour liquid into cup◔
?Use a power tool◔
?Type on keyboard✕
?Climb stairs with load✓
?Walk on uneven terrain◔
?Run (>3 m/s)✕
?Crouch under obstacle◔
?Navigate in crowd◔
?Recognize & locate objects✓
?Respond to voice commands?
?Detect humans nearby✓
?Work 8-hour shift✓
?Hot-swap battery?
?Operate 24/7 (with charging)✓
?Work in rain (IP65+)✕
?Work below 0°C?
?Work in dusty environment?
?Work safely alongside humans◔
Ecosystem Openness
65
GR-1
/100
—
Forerunner K1
ROS + Isaac Lab + MuJoCo. Growing research community.
Pros and cons at a glance
GR-1
Pros
- Shipping to customers (verified commercial availability)
- High rated payload (50 kg) for industrial pick-and-place
- 40 degrees of freedom — full-body articulation
Cons
- Unit price not publicly disclosed (quote-on-request or enterprise-only)
- Short runtime (60 min) — frequent recharging or battery swaps
Forerunner K1
Pros
- Shipping to customers (verified commercial availability)
- High rated payload (25 kg) for industrial pick-and-place
- Long runtime (8h per charge) for full-shift operation
- 40 degrees of freedom — full-body articulation
Cons
- Closed software stack — no public SDK or ROS support
Frequently asked questions
How do GR-1 and Forerunner K1 compare on price?
GR-1: ~$150,000–$170,000. Forerunner K1: $30,000. Only one of the two has a public unit price; the other publishes a range or enterprise-only terms.
Which has higher payload: GR-1 or Forerunner K1?
GR-1 rates a higher payload at 50 kg vs 25 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Are both GR-1 and Forerunner K1 shipping to customers?
Yes. Both are commercially available as of the last review. Delivery timelines and customer geographies vary per vendor — check the manufacturer page for each.
Which is better for ROS-based development: GR-1 or Forerunner K1?
GR-1 has ROS 1 only; Forerunner K1 has no ROS support. For research and multi-vendor robotics stacks, native ROS 2 is the strongest signal of ecosystem maturity.
Last updated: 2024