Robot model

Alex

Alex is the Florida Institute for Human and Machine Cognition's full-size humanoid, built from its Nadia platform, with onboard computation, perception, and…

Manufacturer: IHMC Robotics
Form factor: humanoid
Maturity: research
Lifecycle: active
Website: robots.ihmc.us ↗

The verified answer

As of Oct 2026, DEPLOY verifies Alex, a humanoid by IHMC Robotics (research). 5 sources back the record.

Overview

Alex is the Florida Institute for Human and Machine Cognition's full-size humanoid, built from its Nadia platform, with onboard computation, perception, and power for outdoor operation. IHMC's design page says Alex has 29 joints. The Alex specifications page lists height 179 cm, weight 85 kg, speed 1.5+ m/s, battery 2+ hrs, and payload (cont.) 15+ kg.

On Sep 11 2026 the U.S. Army named Alex among five xTechHumanoid winners. Distinct from Boardwalk Robotics' upper-body Alex.

Verified vs. claimed

Maturity stage: research(Lab-stage only; no commercial or public deployment reported.)
Sources on file: View all sources →

No verified deployments on file. DEPLOY tracks independently-sourced deployment evidence separately from manufacturer capability claims.

Key facts

29 joints, onboard power, outdoor-capable (research-stated)

Research-stated (research-stated; also Alex specifications): IHMC's Alex is its newest full-size humanoid, built from Nadia, with custom highly backdrivable quasi-direct-drive actuators and cycloidal transmissions, plus onboard computation, perception, and power so it can operate outside. The design page says that across its 29 joints the team set performance requirements per task. The Alex specifications page lists height 179 cm, weight 85 kg, speed 1.5+ m/s, battery 2+ hrs, and payload (cont.) 15+ kg. The design page names development funding from the Office of Naval Research, the Army Research Laboratory, and the Army Data Analysis Center. Cap: institute-stated hardware pages, not an independent measurement.

xTechHumanoid winner (Army-stated, Sep 2026)

Army-stated (Army-stated; also army.mil): on Sep 11 2026 the U.S. Army named the Florida Institute for Human and Machine Cognition one of five xTechHumanoid winners for Alex, "a humanoid robot featuring impact-resilient actuators, ballistic protection, and hybrid autonomy combining artificial intelligence and human control for complex and dangerous missions." IHMC Robotics (LinkedIn) says that prize was first place in the Baseline Humanoid System category. Cap: prize-competition selection, not a fielded Army program or a procurement contract. Distinct from Boardwalk Robotics' upper-body Alex.

Specs

Speed

1.5+ m/s

Height

179 cm

Joints

Weight

85 kg

Battery

2+ hrs

Payload (cont.)

15+ kg

Data & sources

Government records

Web sources

5 sources backing this record.View all →

Pricing

No verified price is on record for Alex. Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.

How DEPLOY tracks pricing

Recent activity

Every change to this record is dated, sourced, and independently verified where marked.

Record createdOct 4, 2026
Added to the verified registry

Full change history →

Safety record

No incidents on record for Alex.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Sources (5)

Humanoid Robot Design · https://robots.ihmc.us/humanoid-design
Alex Humanoid specifications · https://robots.ihmc.us/alex-humanoid
xTechHumanoid Winners Advance Military Exploration of Emerging Humanoid Capabilities · https://pit.army.mil/update/xtechhumanoid-winners-advance-military-exploration-of-emerging-humanoid-capabilities/ · 2026-09-28
Robotics competition winners advance military exploration of humanoid capabilities · https://www.army.mil/article/295812/robotics_competition_winners_advance_military_exploration_of_humanoid_capabilities · 2026-09-30
First Place at xTech! · https://www.linkedin.com/feed/update/urn:li:activity:7506431365924700162

Common questions

What is Alex?

How much does Alex cost?

Alex's price is not publicly disclosed. DEPLOY has no verified price on record for Alex from IHMC Robotics. Physical-AI systems like this are often sold through enterprise contracts or operated as a service rather than at a public list price; check the manufacturer for the latest.

Is Alex actually deployed in the real world?

Alex is at the research stage: it exists, but DEPLOY has no verified real-world deployment on record. Manufacturer capability claims should be read as claims pending independent verification.

What are the specs of Alex?

Alex's recorded specifications on the DEPLOY registry: Speed: 1.5+ m/s; Weight: 85 kg; Battery: 2+ hrs. See the Specs section for the full sourced set.

Who makes Alex?

Alex is made by IHMC Robotics, based in Pensacola, FL, USA.

Can you buy Alex?

Alex is at research stage and is not yet available for sale.

What are alternatives to Alex?

On the DEPLOY registry, comparable humanoid robots to Alex include Walker S2, Digit, Unitree G1, Atlas.

How does Alex compare to Walker S2?

Alex and Walker S2 (UBTech Robotics · 18 deployments) are both humanoid robots on the DEPLOY registry. Alex has 0 verified deployments on record. Compare both records for specs, safety, deployments, and verified-vs-claimed autonomy.

What is Alex's maturity stage?

Alex is at the research stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Research stage means active development without commercial deployments on file.

Where is Alex deployed?

No verified deployments of Alex are currently on the DEPLOY registry. DEPLOY records deployments only when verified at a named site with a primary source; absence may reflect pre-deployment, research, or manufacturer-internal use.

Is Alex safe?

Alex has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.

Methodology: Verified · 5 sources (2 primary) · last reviewed 2026-10-04

Verification posture

Verified

High confidence

Review state

Stable

Last reviewed 2026-10-04

Maturity + lifecycle

Maturity stage: research

Lifecycle: active

Architectural position

Cohort: humanoid

Sources by quality tier

3: unclassified; Unclassified source
2: primary-government-record; Government record

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.