Houston Plumbing Inc. · INV266084
PDF text layer (the model received only this text)
Invoice No. INV266084
FROM BILL TO
Houston Plumbing Inc. Bray & Sons, LLC
5813 Oak Avenue 1769 Market Street
Houston, TX 77091 San Diego, CA 92140
Tel. (614) 555-0124 EIN: 61-8788789
Invoice date 07/21/2026 Pay by ACH
Terms Net 15 Bank Citibank, N.A.
Due date 08/05/2026 Account name Houston Plumbing Inc.
P.O. number PO-29945 Routing number 021000089
Account number 91579806311
Payment reference INV266084
Description Qty Unit Unit price Tax Amount
LED troffer light 2 x 4 ft 8 ea 100.00 T 800.00
Tri-fold brochures, full color 254 ea 0.34 T 86.36
Office chair, ergonomic 3 ea 347.99 T 1,043.97
Wood screws #8 x 1-1/2 in., box of 100 1 box 12.99 T 12.99
Scissor lift rental 5 day 280.05 T 1,400.25
Porcelain floor tile 12 x 24 in. 56.7 sq ft 4.76 T 269.89
NM-B wire 12/2, 250 ft 2 roll 141.00 T 282.00
Toner cartridge, black 2 ea 170.99 T 341.98
Portland cement, 94 lb bag 98 ea 17.57 T 1,721.86
Safety glasses, clear 43 pr 7.00 T 301.00
Exterior paint, 5 gal 8 ea 166.48 T 1,331.84
Toner cartridge, black 1 ea 84.99 T 84.99
Drywall sheet 1/2 in. 4 x 8 ft 13 ea 12.01 T 156.13
Laptop docking station 24 ea 203.99 T 4,895.76
LED troffer light 2 x 4 ft 11 ea 47.00 T 517.00
Subtotal 13,246.02
Taxable at 7.75% 13,246.02
Sales tax (7.75%) 1,026.57
Total 14,272.59
Total due: $14,272.59
Thank you for your business!
Prepared by: Brian Foster
Verdict
Cheapest without an error: GPT-6 Luna at $0.21 per 1,000 documents.
- Claude Sonnet 5 is also error-free but 23.1× more expensive.
Prompt given to every model
Extract the following data from the attached document and return only JSON with these keys:
supplier_name supplier's name (exactly as printed, including the legal form)
supplier_id supplier's tax ID (EIN), if printed
invoice_number document number
payment_reference payment reference to quote with the payment
issue_date invoice date (YYYY-MM-DD)
due_date due date (YYYY-MM-DD)
net_by_rate amount per sales tax rate, e.g. {"8.25": 1845.00}; non-taxable amounts under "0"
vat_by_rate sales tax per rate, e.g. {"8.25": 152.21}
total total due (number, negative for credit notes)
currency ISO 4217 currency code (USD, GBP, EUR, …)
bank_account supplier's bank details as "routing-number account-number", or IBAN
Rules:
- Return the supplier's data only, never the customer's.
- If a value is not on the document, return null. Do not guess.
- If the document has no tax breakdown, return net_by_rate and vat_by_rate as null.
- Amounts as numbers with a decimal point, no thousands separators and no currency symbol.
How we score
Exact match per field after normalising dates, amounts and whitespace. Missing diacritics count as an error. Cost is the real token spend of this run, converted at the rate shown in the footer.
What each model extracted
| Field | Correct value | GPT-6 Luna11 / 11 fields | Gemma 4 31B11 / 11 fields | Mistral Small 411 / 11 fields | DeepSeek V4.1 Flash11 / 11 fields | Gemini 3.5 Flash Lite11 / 11 fields | Qwen3.8 Flash9 / 11 fields | Gemini 3.8 Flash11 / 11 fields | Mistral Medium 3.511 / 11 fields | GPT-6 Sol11 / 11 fields | Claude Sonnet 511 / 11 fields |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Supplier | Houston Plumbing Inc. | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) | Houston Plumbing Inc. (correct) |
| Supplier ID (EIN, IČO…) | 61-8788789 | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) | 61-8788789 (correct) |
| Invoice number | INV266084 | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) |
| Payment reference | INV266084 | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) | INV266084 (correct) |
| Invoice date | 2026-07-21 | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) | 2026-07-21 (correct) |
| Due date | 2026-08-05 | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) | 2026-08-05 (correct) |
| Net by tax rate | 7.75 %: 13246.02 | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | : null, %: 13246.02wrong rate | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) | 7.75 %: 13246.02 (correct) |
| Tax by rate | 7.75 %: 1026.57 | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | : null, %: 1026.57wrong rate | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) | 7.75 %: 1026.57 (correct) |
| Total | 14272.59 | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) | 14272.59 (correct) |
| Currency | USD | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) | USD (correct) |
| Bank account | 021000089 91579806311 | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) | 021000089 91579806311 (correct) |
| Tokens | input / output | 1,051 / 165 | 1,118 / 182 | 1,111 / 177 | 1,183 / 304 | 1,106 / 216 | 1,467 / 1,992 | 1,106 / 216 | 1,111 / 177 | 1,051 / 146 | 1,313 / 231 |
| of which hidden reasoning | billed as output | 55 | 0 | 0 | 193 | 0 | 1,780 | 0 | 0 | 36 | 37 |
| of which from cache | input billed at a discount | 0 | 306 | 0 | 438 | 0 | 512 | 0 | 0 | 0 | 0 |
| Cost of this document | this run | $0.0002 | $0.0002 | $0.0003 | $0.0004 | $0.0009 | $0.0011 | $0.0016 | $0.0030 | $0.0041 | $0.0049 |
| Per 1,000 documents | for the same kind of document | $0.21 | $0.23 | $0.27 | $0.37 | $0.87 | $1.09 | $1.64 | $2.99 | $4.09 | $4.94 |
| Latency | this run | 2.5 s | 7.8 s | 1.4 s | 3.5 s | 1.1 s | 27.8 s | 1.2 s | 1.3 s | 3.6 s | 2.7 s |