HS Code Classification Accuracy Benchmark
Independent classification 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 Import8's multi-step AI classification pipeline: semantic keyword extraction, candidate HS heading search across 16,000+ tariff codes, and final classification with full commodity tree context and EBTI rules. The AI receives both product images and descriptions — identical to real-world API usage.
How we measured
Sample: 283 independent EBTI products drawn from the EU's European Binding Tariff Information database. Coverage: 54 of 97 HS chapters (43 chapters not yet tested — typically raw materials and chemicals with low EU import volume). Method: top-down General Rules of Interpretation (GRI), supplemented by TARIC chapter notes and hand-tuned EBTI rules. Last benchmark run: 19 March 2026.
Limitations
These benchmarks are run on Express-mode (autonomous, no human confirmation). Audit-mode results may differ. Edge cases (ambiguity between adjacent chapters) are excluded — see Audit-mode for those. We test against EBTI rulings; live customs decisions can vary. Duty rates are sourced from the EU TARIC database and are indicative only.
Accuracy by Chapter
| Chapter | Products | 6-Digit | 8-Digit | 6-Digit Accuracy |
|---|---|---|---|---|
| Chapter 39 | 1 | 1/1 | 1/1 |
|
| Chapter 61 | 2 | 2/2 | 2/2 |
|
| Chapter 62 | 3 | 3/3 | 3/3 |
|
| Chapter 64 | 1 | 1/1 | 1/1 |
|
| Chapter 73 | 3 | 2/3 | 2/3 |
|
Error Distribution
Individual Classifications
| Product | Expected | Classified | 6-Digit | 8-Digit | Time |
|---|---|---|---|---|---|
| Klasyfikacja zgodna z postanowieniami 1. i 6. reguły Ogólnyc... | 6212.20 | 6212.20 | Pass | Pass | 26.5s |
| Pantalón largo (culote) confeccionado con fibras sintéticas... | 6203.43 | 6203.43 | Pass | Pass | 29.1s |
| Es handelt sich um vollständig aus verchromtem Stahl (kein n... | 7323.99 | 7323.99 | Pass | Pass | 27.3s |
| Tovar je zatriedený na základe všeob. pravidiel pre interpre... | 7326.20 | 7326.90 | Fail | Fail | 27.0s |
| Reglas generales 1 y 6, y texto de los códigos 6210, 6210 10... | 6210.10 | 6210.10 | Pass | Pass | 27.9s |
| Lange Hose, in Erwachsenengröße, Foto siehe Anlage, - in ein... | 6103.43 | 6103.43 | Pass | Pass | 32.5s |
| Všeobecné pravidlá č. 1 a č. 6 na interpretáciu Kombinovanej... | 3926.90 | 3926.90 | Pass | Pass | 30.8s |
| Conform descrierii solicitantului si imaginii publicate in b... | 6402.99 | 6402.99 | Pass | Pass | 32.3s |
| T-Shirt und lange Hose, sog. Thermoset unisex, Größe XL, Fot... | 6104.63 | 6104.63 | Pass | Pass | 33.1s |
| Es handelt sich um Warenzusammenstellungen, bestehend aus: -... | 7318.16 | 7318.16 | Pass | Pass | 40.0s |
Historical Benchmark Runs
| Date | Products | Model | Version | |
|---|---|---|---|---|
| 29 May 2026 07:52 | 10 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 [v2026-03-23] | View |
| 29 May 2026 07:47 | 30 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 [v2026-03-23] | View |
| 28 May 2026 14:52 | 10 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 28 May 2026 14:34 | 30 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 28 May 2026 13:30 | 29 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 28 May 2026 13:14 | 28 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 28 May 2026 12:14 | 23 | claude-opus-4-7 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 27 May 2026 13:51 | 28 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 27 May 2026 13:50 | 29 | claude-sonnet-4-6 | v20-ebti-rules v1.00.03 sonnet-nav | View |
| 27 May 2026 13:26 | 30 | claude-haiku-4-5-20251001 | v20-ebti-rules v1.00.03 | View |
| 27 May 2026 13:06 | 30 | claude-haiku-4-5-20251001 | v20-ebti-rules v1.00.03 | View |
| 27 May 2026 12:42 | 30 | claude-haiku-4-5-20251001 | v20-ebti-rules v1.00.03 | View |
| 23 Mar 2026 10:16 | 299 | claude-sonnet-4-6 | v20-ebti-rules v1.00.01 | View |
| 23 Mar 2026 09:15 | 100 | claude-sonnet-4-6 | v20-ebti-rules v1.00.00 | View |
| 08 Mar 2026 22:08 | 10 | claude-sonnet-4-5-20250929 | v15-topdown | View |
| 08 Mar 2026 21:56 | 10 | claude-sonnet-4-5-20250929 | v15-topdown | Current |
| 08 Mar 2026 21:36 | 10 | claude-sonnet-4-5-20250929 | v16-prefilter | View |
| 08 Mar 2026 21:17 | 10 | claude-sonnet-4-5-20250929 | v15-topdown | View |
| 08 Mar 2026 20:29 | 10 | claude-sonnet-4-5-20250929 | v15-topdown | View |
| 08 Mar 2026 20:21 | 10 | claude-sonnet-4-5-20250929 | v15-topdown | View |
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