Tesla Optimus vs XPENG IRON (2026): Which Humanoid Is Ahead?

XPENG IRON leads this 2026 disclosure-based comparison. XPENG has disclosed more of its current robot and attached it to a dated deployment plan. Tesla Optimus is the bigger manufacturing bet, but Tesla still provides no current product sheet, public order channel, customer uptime data or firm delivery date. Neither robot is ready for procurement.

That distinction matters. A published demonstration and a production target are evidence of progress, but they are not the same as a supported product. This comparison prioritizes current-generation disclosure and dated deployment evidence over demonstrations, theoretical capability or brand-scale ambition. It scores only what Tesla and XPENG had published by July 17, 2026.

Quick verdict

What exactly are we comparing?

This is not a clean specification-sheet contest. Tesla's Optimus review tracks the evergreen program, while the separate Gen 3 page owns the version chronology. Tesla described Gen 3 as its first design intended for mass production, yet it has not published a complete current-generation specification sheet.

XPENG's side is clearer. The XPENG IRON review now centers on the next-generation model revealed in November 2025, not the first-generation 2024 robot. XPENG published specific hardware details for that design and followed with a June 2026 rollout update.

The comparison therefore asks a more useful question: which company has provided the stronger evidence that its current humanoid can become a real, supported product?

Hardware: IRON wins on disclosure

XPENG has put numbers behind its latest design. At its 2025 AI Day, the company said Next-Gen IRON has 82 degrees of freedom across the body, 22 degrees of freedom in each human-scale hand, three Turing AI chips, a human-like spine, bionic muscles, a flexible outer skin and an all-solid-state battery. XPENG's official materials conflict on aggregate compute: the November 2025 release says 3,000 effective TOPS, while its January 2026 Singapore release and February 2026 Indonesia release say 2,250 TOPS. RoboZaps treats the figure as unresolved.

Those are manufacturer claims, not independent performance results. They do, however, give an operator something concrete to question. Buyers can ask how the 82 degrees of freedom are allocated, what loads the hands can sustain, how runtime changes by task, and whether the battery has passed the relevant safety tests.

Tesla has published walking and manipulation demonstrations, but its current program page and 2026 investor updates do not provide an equivalent product sheet. The last publicly shown Gen 2/2.5 design is not a safe substitute for an unreleased production design. On disclosed current hardware, IRON wins by default.

AI and autonomy: no defensible winner yet

Both companies are trying to reuse an automotive AI stack in a humanoid body. Tesla describes Optimus as a general-purpose autonomous biped that depends on vision, planning, balance, navigation and physical-world interaction. At CVPR 2026, Tesla said its robotics work uses large-scale multimodal foundation models in an end-to-end pixels-to-actuation system.

XPENG says IRON combines its physical-world model with VLT, VLA and VLM components. Its stated advantage is vertical integration across chips, models and hardware. The company also plans to open an IRON SDK to developers.

Raw TOPS does not decide this round. Neither company publishes a common task set, intervention rate, recovery rate or full-shift result that would allow a fair comparison. Tesla describes a large-scale multimodal training stack. XPENG publishes a more explicit on-robot compute architecture. Neither disclosure establishes superior autonomy.

Hands and movement: IRON is the clearer design

IRON's 22-DoF hands and 82-DoF body make dexterity central to the product, not a side feature. XPENG designed its gait and human-like form for retail and human-facing settings, but appearance does not validate operational reliability. More joints can increase control complexity and maintenance burden. A high degree-of-freedom count is valuable only when the robot can repeat useful work without frequent intervention.

Tesla has made hand development a visible priority and described the latest hand as a major part of the Gen 3 upgrade. What is missing is a current, comparable disclosure. Until Tesla publishes the production hand design and task data, IRON leads this category on evidence rather than proven productivity.

Production and deployment: two different bets

Tesla has the more aggressive scale story. Its Q4 2025 update called Gen 3 its first design meant for mass production. It said preparations for the first production line were underway, including supply-chain readiness, with production planned before the end of 2026 and eventual capacity of one million robots a year. The Q1 2026 update said first-generation lines were being installed, the Fremont line was designed for one million robots a year, and preparations for the first large-scale Optimus factory would begin shortly in Q2. These are line, factory and designed-capacity milestones, not current output.

XPENG has published the clearer first deployment path. In June 2026, the company said the mass-production-ready IRON version was "poised to enter" joint hardware-software integration, with formal mass production targeted by year-end. It also said IRON robots are set to work as shopping guides in XPENG stores from Q1 2027. XPENG has separately named Baosteel as an industrial inspection partner.

Neither statement proves output. Tesla has not disclosed a current production count or an external customer operating record. XPENG's retail and industrial plans remain forward-looking until robots are doing the work. Today, Tesla leads on stated scale ambition; IRON leads on the specificity of the next deployment.

Price and availability: neither is a buyer option

Tesla Optimus is not for sale. There is no MSRP, deposit, reservation page, delivery schedule or published buyer terms.

XPENG IRON is also not for sale and has no official price. XPENG's current robot page describes the program but provides no order or price path. Third-party estimates should not be treated as quotations from XPENG. For realistic ranges, integration costs and support requirements, use the separate humanoid robot cost guide.

If you need a robot now, neither belongs on a procurement shortlist. Compare models with a current order channel, documented support and a defined task envelope in the guide to humanoid robots buyers can actually procure.

Which program is more relevant to watch by use case?

• Factory automation program to watch: Optimus. This is an inference from Tesla's manufacturing footprint, not evidence of a customer deployment. Its internal factories could provide a proving ground.
• Near-term retail or service pilot to watch: IRON. XPENG has named the job, location type and Q1 2027 starting window.
• Developer access: IRON. XPENG has said it will open an SDK; Tesla has not announced a public Optimus developer platform.
• Published hardware detail: IRON. XPENG provides a current body, hand, compute and battery description.
• Long-term scale ambition: Optimus. Tesla's stated eventual capacity is larger, although capacity is not production.
• 2026 procurement: Neither. There is no buyer-ready offer to compare.

What would change the verdict?

The next useful evidence is not another stage walk. It is operating data. A serious evaluation needs a defined task, units deployed, paid or internal deployment status, task success rate, human interventions, uptime, runtime under load, safety controls, service coverage and total installed cost.

Tesla can close the gap by publishing the current production design and a repeatable operating record. XPENG can convert its disclosure lead into a commercial lead by meeting the 2026 production target and showing that the Q1 2027 retail robots work reliably without hidden human assistance.

Final verdict

XPENG IRON leads this disclosure-based comparison today. It has the more complete current hardware disclosure, a named developer strategy and a dated first deployment plan. Tesla Optimus remains the larger manufacturing and AI-scale bet, yet buyers still have to bridge too many gaps with assumptions.

That does not make IRON the better working robot. It makes IRON the better-documented program. Until either company publishes customer-grade performance and an orderable configuration, the practical decision is the same: watch both, procure neither.