Compare
Head to head
Melody vs Optimus
Melody, from Realbotix, lists at M-Series from $95k (launched ~$150k); $199.99/mo AI; Optimus, from Tesla, at Target ~$30k at scale; Musk has floated under $20k. Here's how the two compare across price, realism, specifications and availability.
Melody56/100
Optimus34/100
Realism Index sub-scores — six weighted dimensions built from public evidence. How we score
 |  | |
|---|---|---|
| Status | Shipping | Announced |
| Type | Companion | Humanoid |
| Form | Modular | Full body |
| Presents as | Female-presenting | Non-gendered |
| Price | M-Series from $95k (launched ~$150k); $199.99/mo AI | Target ~$30k at scale; Musk has floated under $20k |
| Subscription | $199.99/mo | — |
| Availability | Built to order | Targeted H2 2026 |
| Origin | USA | USA |
| Realism index | 56/100 | 34/100 |
| Height | 175 cm · 5 ft 9 in (third-party) | 173 cm · 5 ft 8 in |
| Weight | ~54 kg (third-party) | 57 kg · 125 lb (Gen 2 baseline) |
| Skin & materials | Platinum-cure silicone | Industrial shells — no synthetic skin |
| Actuation | Dynamixel P-Series servos; 17 facial motors | 40+ actuators; hands targeting 22 DoF (Gen 3) |
| Power | Built-in battery | ~2.3 kWh battery |
| Runtime | Several hours | Not officially confirmed |
| AI & conversation | Open platform — proprietary AI or third-party (e.g. GPT) | FSD-derived vision; new AI5 chip for onboard intelligence (Gen 3) |
| Voice | Customisable voices | Grok-based conversational voice (Gen 3 target) |
| Mobility | Stationary from the waist; does not walk | Bipedal walking demoed ~8 km/h |
| Expressions | 17 facial motors; smoother P-Series motion | No expressive face |
| Languages | 100+ languages | — |
| Connectivity | Wi-Fi, Bluetooth | Wi-Fi / cellular |