Claude Sonnet 4.6 → CadQuery
A · Engineering-Capablecomposite 65.1 [59.8, 70.0]p5 0.0IRT θ 86.2
Anthropic + CadQuery 2.4· vsonnet-4.6 + cadquery 2.4· released 2025-12-04· LLM+CadQuery· emits CadQuery· proprietary· 1000k ctx· $0.003/$0.015 per 1k tok
Same scaffold and self-repair budget as the Opus 4.7 pipeline. About 5× cheaper at the cost of ~6 IoU points on hard parametric tasks. Best Pareto candidate for high-throughput sweeps.
solid: agent · dashed: human baseline
PER-CATEGORY SCORE (95 % CI)
Geometric Primitives
87.6
Boolean Robustness
88.0
BREP Fidelity
75.0
Free-form Surfaces
81.8
Parametric Mechanical Parts
58.0
Assembly & Mating
54.7
Standards Compliance
62.6
Sheet-Metal Bodies
71.0
Sealing-Groove Design
71.0
Kinematic Mechanisms
46.7
DFM · 3-Axis CNC
68.4
DFM · Injection Mould
62.8
DFM · FDM 3D Print
49.2
CAM Toolpath Validity
66.6
Constraint Solving & Editability
72.9
Reverse Engineering
43.7
2-D Sketch Constraints
83.8
Functional Intent · FEA-Gated
60.3
Paraphrase Robustness
82.6
Confidence Calibration
36.9
MEAN METRICS BY LAYER
L1 · Geometry
| Category | Vol IoU | Chamfer | Hausdorff | NormCons | Watert. | Manif. | Euler | STEP RT | P@1 |
|---|---|---|---|---|---|---|---|---|---|
| Geometric Primitives | 0.636 | 0.154 | — | — | — | 0.946 | — | — | — |
| Boolean Robustness | 0.583 | — | — | — | — | 0.938 | — | — | — |
| BREP Fidelity | — | — | — | — | — | 0.922 | — | 0.118 | — |
| Free-form Surfaces | — | 0.262 | 1.296 | 0.740 | — | — | — | — | — |
L2 · Engineering
| Category | Dim RMSE | GD&T | FeatRec | Mating | Fit-Cls | Std |
|---|---|---|---|---|---|---|
| Parametric Mechanical Parts | 0.233 | 0.578 | 0.686 | — | — | — |
| Assembly & Mating | — | — | 0.685 | 0.583 | 0.373 | — |
| Standards Compliance | — | 0.596 | — | — | — | 0.656 |
| Sheet-Metal Bodies | 0.194 | — | 0.712 | — | — | — |
| Sealing-Groove Design | 0.210 | — | — | — | — | 0.630 |
| Kinematic Mechanisms | — | — | 0.708 | 0.633 | — | — |
L3 · Manufacturing
| Category | DFM | Draft | Min-Wall | CAM-Reach | Supp | Wall-Unif |
|---|---|---|---|---|---|---|
| DFM · 3-Axis CNC | 80.450 | — | 0.603 | 0.645 | — | — |
| DFM · Injection Mould | — | 0.629 | 0.631 | — | — | 0.624 |
| DFM · FDM 3D Print | 79.050 | — | 0.599 | — | 0.351 | — |
| CAM Toolpath Validity | — | — | — | 0.621 | — | — |
L4 · Cognition
| Category | ParamEdit | ConSolve | P-Range | FEA-σ | Para σ | Seed σ | Brier | EditLat |
|---|---|---|---|---|---|---|---|---|
| Constraint Solving & Editability | 0.745 | 0.769 | 0.672 | — | — | — | — | — |
| Reverse Engineering | — | — | — | — | — | — | — | — |
| 2-D Sketch Constraints | — | 0.734 | — | — | — | — | — | — |
| Functional Intent · FEA-Gated | — | — | — | 0.497 | — | — | — | — |
| Paraphrase Robustness | — | — | — | — | 0.026 | 0.043 | — | — |
| Confidence Calibration | — | — | — | — | — | — | 0.132 | — |
TASK-BY-TASK ARTIFACTS
PRIM-001Hollow cylinder (60 × 40 × 100)0.6190.00PRIM-007Right hexagonal prism with pitch fillet0.7170.00BOOL-003Coplanar-face union (knife-edge stress)0.5630.00BOOL-009High-genus subtraction (lattice block)0.6100.00BREP-004NURBS-handle goblet (G2 swept loft)0.5190.00SURF-002Compressor blade (NACA 65-(12)10)0.2250.00MECH-014L-bracket with M6 + slotted hole0.0000.00MECH-022Stepped shaft with retaining-ring groove0.6250.00MECH-027Planetary-gear carrier plate0.6600.00ASM-005Pin-in-hole, H7/g6 sliding fit0.4440.00ASM-011Dovetail slide (60° flanks)0.5200.00STD-002ISO 4762 M8×30 socket-head cap screw0.5570.00SHEET-003U-channel bracket, 1.5 mm Al, k=0.400.6730.00SEAL-001AS568-214 face-seal groove0.5900.00KIN-002Four-bar linkage, Grashof crank-rocker0.0000.00DFMCNC-0023-ax-machinable manifold block0.5410.00DFMMOLD-002Injection-mouldable enclosure half0.5400.00DFMFDM-008FDM-printable hinge (no support)0.6000.00CAM-0015-pocket plate, Ø3 endmill finish0.4990.00PARAM-006Editable flange (bolt circle param sweep)0.7420.00PARAM-013Editable bracket (length+30 %, hole→M8)0.5260.00REVENG-002Three-view ortho → bracket0.5480.00REVENG-009Three-view ortho → housing with cores0.0000.00SKETCH-003Tangent-arc transition profile0.7010.00FUNC-001Cantilever bracket — 250 N tip load, 6061-T6, SF≥40.4040.00FUNC-007Heat-sink fin array for 25 W TO-2200.3880.00PARA-0015× paraphrased L-bracket0.7160.00CAL-003Confidence-calibrated planetary carrier0.3860.00PRIM-002Sphere with planar cap0.7610.00PRIM-003Right truncated cone (frustum)0.5770.00PRIM-004Square-base pyramid frustum0.5850.00PRIM-005Tilted-axis box (30°)0.7460.00PRIM-009Hollow torus (Ø100 mean × Ø8 tube, 1 mm wall)0.4490.00BOOL-001Tangent cylinder onto cube (line-of-contact)0.5570.00BOOL-002Two interpenetrating spheres (lens intersection)0.5850.00BOOL-005ε-offset extrusion (sliver-face stress)0.6020.00BREP-001Periodic-spline cylinder (closed in U)0.4980.00BREP-002G1-only loft (tangent discontinuity)0.4020.00BREP-007Trimmed sphere with hole through pole0.5170.00SURF-001Ergonomic mug handle (revolved spline)0.4630.00SURF-007Mouse top-shell (Class-A)0.3270.00MECH-002Bearing block — two 6204 deep-groove bearings0.6050.00MECH-005Cam-follower lever (eccentric pivot)0.6760.00MECH-018Heat-set insert boss array (4× M3)0.6050.00MECH-031Threaded cap with diamond knurl0.5160.00ASM-001Threaded coupling M16×1.5 (male+female pair)0.4450.00ASM-008Spline shaft + hub (DIN 5480 W25×1.25×18)0.4780.00ASM-013Bayonet quarter-turn mount0.5320.00STD-001ISO 7050 self-tapping screw ST4.2 × 160.6510.00STD-005ISO 8734 dowel pin Ø6 m6 × 300.6120.00STD-008ASME B18.6.3 button-head 1/4-20 × 5/80.5190.00SHEET-001Box-pan with corner relief cuts0.5230.00SHEET-0073-bend electronics chassis0.4340.00SEAL-004AS568-218 piston-type radial groove0.5930.00SEAL-007ISO 3601-2 quad-ring face groove0.5870.00KIN-005Geneva drive — 4 station0.5000.00KIN-008Planetary gearset full mesh (sun + 3 planets + ring)0.3300.00DFMCNC-0054-pocket plate, R 0.5 internal corners0.5430.00DFMCNC-009Long-aspect bracket (vise-fixturable)0.4800.00DFMCNC-0135-axis-only fish-mouth saddle0.6290.00DFMMOLD-005Telephone handset shell0.4800.00DFMFDM-002Bridge-test calibration cube0.5540.00DFMFDM-011Print-in-place hinge0.0000.00CAM-005T-slot pocket array (Ø 8 + Ø 4 endmills)0.6340.00PARAM-009Configurable bottle (height + cap params)0.6330.00REVENG-005ABC dataset stepped pulley (multi-view)0.4320.00SKETCH-014Symmetric four-bar profile0.7340.00FUNC-003Heat-sink for 60 W CoB LED0.4450.00PARA-0055× paraphrased planetary carrier0.5900.00CAL-007Confidence-bracketed mounting flange0.5520.00