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 61 | 2 | 2/2 | 2/2 |
|
| Chapter 64 | 1 | 0/1 | 0/1 |
|
| Chapter 73 | 1 | 0/1 | 0/1 |
|
| Chapter 85 | 2 | 1/2 | 0/2 |
|
| Chapter 90 | 1 | 0/1 | 0/1 |
|
| Chapter 94 | 3 | 3/3 | 3/3 |
|
Error Distribution
Individual Classifications
| Product | Expected | Classified | 6-Digit | 8-Digit | Time |
|---|---|---|---|---|---|
| Die als "SteelCraft 2-fach Steckdose" bezeichnete Ware beste... | 8536.69 | 8536.90 | Fail | Fail | 57.7s |
| Dle deklarovaných údajů se jedná o stiskací spínač světla v... | 8536.50 | 8536.50 | Pass | Fail | 54.2s |
| Sittmöbel i form av en stoppad fåtölj med läderklädsel och h... | 9401.71 | 9401.71 | Pass | Pass | 66.6s |
| Conform descrierii solicitantului si imaginii publicate in b... | 6402.99 | 6403.40 | Fail | Fail | 68.1s |
| Bei dem als "Handtuchständer 3 Arme Chrom" bezeichneten Erze... | 9403.20 | 9403.20 | Pass | Pass | 49.0s |
| Bei der als "Wohnling Couchtisch RIVA" bezeichneten Ware han... | 9403.20 | 9403.20 | Pass | Pass | 46.4s |
| Attacchi snodati. Gli articoli sono sistemi di collegamento... | 7318.19 | 7326.90 | Fail | Fail | 55.9s |
| T-Shirt und lange Unterhose, sog. Thermoset für Herren, Größ... | 6109.90 | 6109.90 | Pass | Pass | 57.4s |
| Kniestrümpfe, in Einheitsgröße, Foto siehe Anlage, - paarwei... | 6115.96 | 6115.96 | Pass | Pass | 51.3s |
| Een zogenoemd massageapparaat met -volgens opgave- onder and... | 9019.10 | 4421.99 | Fail | Fail | 51.7s |
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 | Current |
| 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 | View |
| 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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