Classification Accuracy Benchmark
Independent accuracy testing against the EU's EBTI (European Binding Tariff Information) database — the gold standard for HS code classification.
Methodology
Test Data
Products are sourced from the EU's EBTI (European Binding Tariff Information) database — legally binding classification decisions made by EU customs authorities. Each product includes an official product description, product image, and the correct HS code assigned by certified customs experts.
Classification Process
Each product is classified using Customs8's multi-step AI pipeline: semantic keyword extraction, candidate heading search across 16,000+ tariff codes, and final classification with full commodity tree context. The AI receives both product images and descriptions — identical to real-world API usage.
Accuracy by Chapter
| Chapter | Products | 6-Digit | 8-Digit | 6-Digit Accuracy |
|---|---|---|---|---|
| Chapter 39 | 1 | 0/1 | 0/1 |
|
| Chapter 42 | 2 | 1/2 | 0/2 |
|
| Chapter 64 | 2 | 1/2 | 1/2 |
|
| Chapter 71 | 1 | 0/1 | 0/1 |
|
| Chapter 73 | 2 | 2/2 | 2/2 |
|
| Chapter 84 | 1 | 1/1 | 1/1 |
|
| Chapter 85 | 1 | 1/1 | 1/1 |
|
Error Distribution
Individual Classifications
| Product | Expected | Classified | 6-Digit | 8-Digit | Time |
|---|---|---|---|---|---|
| Carrello bilanciato, registrabile e scorrevole per finestre... | 3925.90 | 8302.41 | Fail | Fail | 56.8s |
| RGI 1 y 6, y texto de los códigos de NC 7307, 7307 19 y 7307... | 7307.19 | 7307.19 | Pass | Pass | 47.3s |
| Stiefel, in Erwachsenengröße, Foto siehe Anlage, - mit Laufs... | 6404.19 | 6404.19 | Pass | Pass | 50.7s |
| RGI 1 y 6 y texto de los códigos NC 7116, 7116 10 00. Se cl... | 7116.10 | 7116.20 | Fail | Fail | 41.0s |
| Všeobecné pravidlá č. 1 a č. 6 na interpretáciu Kombinovanej... | 8538.90 | 8538.90 | Pass | Pass | 51.4s |
| Es handelt sich um vollständig aus Stahl gefertigte Schraube... | 7318.13 | 7318.13 | Pass | Pass | 43.7s |
| Tragbarer Rechner (Tablet), im Wesentlichen bestehend aus ei... | 8471.30 | 8471.30 | Pass | Pass | 47.7s |
| Handtasche, sog. Messenger Bag Kids, LB220413-006, Foto sieh... | 4202.22 | 4202.92 | Fail | Fail | 52.1s |
| Conform descrierii puse la dispozitie de solicitant si imagi... | 6403.40 | 6404.19 | Fail | Fail | 53.0s |
| Einkaufstasche, Foto siehe Anlage, - mit einer Außenseite au... | 4202.92 | 4202.92 | Pass | Fail | 70.6s |
Historical Benchmark Runs
| Date | Products | Model | Version | |
|---|---|---|---|---|
| 06 Mar 2026 20:22 | 2 | claude-sonnet-4-5-20250929 | v8-db-candidates | View |
| 06 Mar 2026 19:47 | 10 | claude-sonnet-4-5-20250929 | v8-db-candidates | View |
| 06 Mar 2026 19:41 | 3 | claude-sonnet-4-5-20250929 | v10-hybrid | View |
| 06 Mar 2026 19:35 | 4 | claude-sonnet-4-5-20250929 | v10-hybrid | View |
| 06 Mar 2026 19:15 | 10 | claude-sonnet-4-5-20250929 | v9-haiku-candidates | View |
| 06 Mar 2026 19:00 | 10 | claude-sonnet-4-5-20250929 | v9-haiku-candidates | View |
| 06 Mar 2026 18:38 | 9 | claude-sonnet-4-5-20250929 | v8-db-candidates | View |
| 06 Mar 2026 17:51 | 10 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 17:48 | 2 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 17:46 | 1 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 17:41 | 1 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 17:39 | 1 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 16:58 | 10 | claude-sonnet-4-5-20250929 | v7-function-over-material | View |
| 06 Mar 2026 16:44 | 10 | claude-sonnet-4-5-20250929 | v6-confidence | View |
| 06 Mar 2026 16:28 | 3 | claude-sonnet-4-5-20250929 | v6-confidence | View |
| 06 Mar 2026 15:56 | 3 | claude-sonnet-4-5-20250929 | v6-confidence | View |
| 06 Mar 2026 15:43 | 10 | claude-sonnet-4-5-20250929 | v6-confidence | Current |
| 06 Mar 2026 15:40 | 1 | claude-sonnet-4-5-20250929 | v6-confidence | View |
| 06 Mar 2026 15:36 | 2 | claude-sonnet-4-5-20250929 | v6-confidence | View |
| 06 Mar 2026 15:32 | 3 | claude-sonnet-4-5-20250929 | v6-confidence | View |
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