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.

28 products tested · Model: claude-sonnet-4-6 · 28 May 2026
Live classification version: 23 maart (Haiku-navigator, geen top-candidates)
89%
6-Digit Accuracy
HS Heading + Subheading
96%
8-Digit Accuracy
EU Combined Nomenclature
25 eligible
92%
10-Digit Accuracy
Full TARIC Code
12 eligible
48.9s
Avg. Processing Time
28
Products Tested
EBTI
Reference Source
SONNET-NAV
Ruleset Version

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 17 1 1/1 1/1
100%
Chapter 39 4 4/4 4/4
100%
Chapter 40 1 1/1 1/1
100%
Chapter 42 3 2/3 2/3
67%
Chapter 48 1 0/1 0/1
0%
Chapter 52 1 1/1 1/1
100%
Chapter 54 2 2/2 2/2
100%
Chapter 58 1 1/1 1/1
100%
Chapter 59 1 1/1 0/1
100%
Chapter 61 1 1/1 1/1
100%
Chapter 62 2 1/2 1/2
50%
Chapter 66 2 2/2 2/2
100%
Chapter 67 1 1/1 1/1
100%
Chapter 68 1 1/1 1/1
100%
Chapter 73 2 2/2 2/2
100%
Chapter 91 2 2/2 2/2
100%
Chapter 94 1 1/1 1/1
100%
Chapter 96 1 1/1 1/1
100%

Error Distribution

25
Correct
89%
2
Wrong Subheading
7%
0
Wrong Heading
0%
0
Wrong Chapter
0%
1
Wrong Section
4%

Individual Classifications

Product Expected Classified 6-Digit 8-Digit Time
Produsele reprezintă anvelope noi pentru vehicule militare,... 4011.90 4011.90 Pass Pass 40.3s
Es handelt sich um massive, zylindrische Erzeugnisse aus nic... 7318.15 7318.15 Pass Pass 46.3s
Krožne žične ščetke z največjim zunanjim premerom od 20 do 1... 9603.50 9603.50 Pass Pass 47.3s
Artykuł z tworzywa sztucznego konstrukcyjnego, stanowiący ad... 3926.90 3926.90 Pass Pass 52.5s
Produsul reprezinta un capac pentru vasul de expansiune care... 3923.50 3923.50 Pass Pass 49.1s
Konstgjord blomma i form av en orkidé i kruka med lecakulor.... 6702.10 6702.10 Pass Pass 39.5s
Kleid, in Erwachsenengröße, Foto siehe Anlage, - in einem Po... 6204.43 6204.43 Pass Pass 47.3s
Elemento utilizzato per la protezione degli ingrassatori da... 7326.90 7326.90 Pass Pass 52.0s
Reglas generales 1, 3 c) y 6. Este artículo debe considerars... 9102.12 9102.12 Pass Pass 42.4s
Regenschirm, sog. Rollatorschirm, Artikel: HA-SCH-10, Foto s... 6601.99 6601.99 Pass Pass 43.4s
Maillot de manga corta, no de punto confeccionado en fibras... 6211.43 6211.33 Fail Fail 50.7s
Varen er en tætsiddende dragt i form af en våddragt, som dæk... 6113.00 6113.00 Pass Pass 56.9s
Angaben: Focus Elegance Sandstein Boden/Terrassenplatten; Fo... 6802.99 6802.99 Pass Pass 51.8s
Gewebe, Foto siehe Anlage, - als Meterware, laut Antrag mit... 5407.10 5407.10 Pass Pass 44.4s
Dle poskytnutých údajů se jedná o pečící papír, na povrchu n... 4811.59 7607.20 Fail Fail 47.4s
Tessuto multistrato accoppiato ad un materiale plastico: il... 5903.90 5903.90 Pass Fail 53.4s
Budzik zasilany sieciowo, wyposażony w podświetlany wyświetl... 9105.11 9105.11 Pass Pass 48.4s
Bei der sog. Picknickdecke kariert, Fleece, Artikel-Nr. MAN... 9404.90 9404.90 Pass Pass 45.6s
Gewebe, Foto siehe Anlage, - im Set aus vier Zuschnitten mit... 5208.52 5208.52 Pass Pass 49.1s
Gumové cukríky v tvare hviezdy červenej farby, aromatizované... 1704.90 1704.90 Pass Pass 71.0s
Schirmständer für einen Sonnenschirm, Foto siehe Anlage, ein... 6603.90 6603.90 Pass Pass 41.0s
Ähnliches Behältnis, sog. 1913 - Bike Pannier Pro Front, Fot... 4202.92 4202.92 Pass Pass 47.4s
Všeobecná pravidla 1, 5b) a 6 pro výklad kombinované nomenkl... 3926.90 3926.90 Pass Pass 49.1s
Tkanina dwuwarstwowa. Warstwę wierzchnią stanowi tkanina o s... 5407.52 5407.52 Pass Pass 52.0s
Potrivit descrierii solicitantului si imaginii publicate in... 4203.40 4203.29 Fail Fail 49.7s
Dle deklarovaných údajů a předložené fotodokumentace se jedn... 3923.21 3923.21 Pass Pass 42.3s
Textillaminat, Foto siehe Anlage, - als Meterware, mit einer... 5801.36 5801.36 Pass Pass 55.6s
Handtasche, sog. catwalk Tasche V-5322B, Foto siehe Anlage,... 4202.22 4202.22 Pass Pass 53.4s

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 Current
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 View
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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