Side-by-side
Where ChipletOS leads. Where competitors still own.
Honest comparison of the ChipletOS glass-TGV signoff stack against the four major EDA platforms. The differentiator is not "we beat them at HFSS"; the differentiator is there is no commercial parameterised glass-TGV PDK on the market — and ChipletOS is the only platform that ships one. Competitors lead on fabricated VNA data and decades of installed-base; ChipletOS leads on automation, route-backed signoff, and buyer-shippable hashed witness packets.
| Capability | ChipletOS | Cadence Sigrity | Synopsys HSPICE | Keysight ADS | ANSYS HFSS | Lumerical (Synopsys) |
|---|---|---|---|---|---|---|
| Parameterised TGV PDK (4 substrate classes + 21 materials) | check_circleLive | absent | absent | absent | absent | absent |
| BEM solver validated against 6 IEEE TGV papers | 4.00% MAE | absent | absent | absent | absent | absent |
| ML surrogate (R² 1.00000, MAPE 0.029 %) | check_circleLive | absent | absent | absent | absent | absent |
| 60-case route-backed signoff benchmark (RF pass) | 60/60 | absent | absent | absent | absent | absent |
| 4-solver cross-solver witness (BEM + FastHenry2 + OpenEMS + Palace) Cadence and Keysight have their own MoM solvers but not 4-solver witness automation; ANSYS HFSS is a single FEM lane; Lumerical is photonic-IC FDTD (different domain). | check_circleLive | warningPartial | absent | warningPartial | warningPartial | absent |
| Per-prediction CI + OOD flag (3-seed deep ensemble) | check_circleLive | absent | absent | absent | absent | absent |
| Promotion CI gate (must beat live on offline AND route-backed) | check_circleLive | absent | absent | absent | absent | absent |
| Group-disjoint corpus (4 substrate classes + 21 materials) | check_circleLive | absent | absent | absent | absent | absent |
| Closed-loop EM Isolation Compiler | check_circleLive | absent | absent | absent | absent | absent |
| GDS-to-yield Bondability Pipeline (7-stage CMP → bond → yield) Cadence has fab process kits; not bondability-yield-coupled like the Bondability Pipeline. | check_circleLive | warningPartial | absent | absent | absent | absent |
| Median signoff cycle time | ~105 ms | hours–days | hours–days | hours–days | hours–days | hours–days |
| Buyer-shippable hashed witness packet (BUYER_DD_PACKET) | check_circleLive | absent | absent | absent | absent | absent |
| Fabricated VNA validation data Honest gap: ChipletOS has no fab data yet (off-track wet-lab work, ~$200-500K, 3-6 months). Competitors have decades. | absent | check_circleLive | check_circleLive | check_circleLive | check_circleLive | check_circleLive |
| Palace 0.16.0 (869ee5c) per-case 4th-solver witness | 25/25 | absent | absent | absent | absent | absent |
| Photonic IC signoff (waveguide / MZI / MMI / ring / grating / photonic crystal) ChipletOS Photonic Signoff sub-brand v1. Lumerical is the photonic-IC FDTD incumbent (~$80M revenue, Synopsys-owned). The Lumerical column is rated here on the photonic-IC lane only — Lumerical does NOT ship glass-TGV chiplet signoff. | yes (v1) | absent | absent | absent | absent | check_circleLive |
| AI-native distribution surface (MCP / Cursor / Claude.ai) No incumbent EDA vendor — including Lumerical — ships an MCP today. ChipletOS Photonic Signoff inherits the 30-tool MCP surface and adds 4 photonic tools. | yes (30 + 4 photonic MCP tools) | absent | absent | absent | absent | absent |
| Closed-loop synthesis (target → geometry inverse design) Lumerical has inverse-design via Tidy3D / lumopt scripting; ChipletOS Photonic Signoff exposes it as a single API call with conformal CI surfacing. | yes (Neff / FSR-Q → geometry) | absent | absent | absent | absent | warningPartial |
| Surrogate-fast inference (ms-scale, not solver hours) Lumerical hot path is FDTD (minutes–hours). ChipletOS Photonic Signoff hot path is a closed-form analytical model at ~0.04 ms/call; the AI surrogate at ≥ 99% R² vs our reference solver is the upgrade path. | yes (~0.04 ms analytical hot path, AI surrogate on the roadmap) | absent | absent | absent | absent | absent |
| Validation vs published photonic references Lumerical validates against published refs internally but does NOT ship a single-call public published-paper cross-check endpoint. ChipletOS Photonic Signoff ships /v1/photonics/validate-against-ieee public, no auth. | yes (5 papers, published-paper cross-check LIVE PASS) | absent | absent | absent | absent | warningPartial |
ChipletOS has no fabricated VNA data yet. That gap is the single biggest unlock and is on the off-track roadmap (estimated $200–500K wet lab, 3–6 months). Competitors lead on installed base, ecosystem integrations (PrimeSim/Spectre/HFSS), and decades of fab-validated process kits. The differentiator is the glass-TGV stack itself — none of the listed competitors have a parameterised glass-TGV PDK, route-backed signoff benchmark, or 4-solver cross-solver witness shipping today.