GPT-6 Sol
United States benchmark
Exact match by programall 18 output groups, best first
Bar length is the unweighted exact-match rate on that program's outputs; the right column is the program's share of the headline weight, which follows household dollars, so the bars do not average to the headline.
- Free school meals eligibility100.0%0.7%
- Local income tax100.0%0.3%
- Payroll tax100.0%16%
- Person-level Early Head Start eligibility100.0%3.1%
- Person-level Head Start eligibility100.0%1.2%
- Person-level Medicare eligibility100.0%11%
- Person-level WIC eligibility100.0%0.3%
- Reduced-price school meals eligibility100.0%0.1%
- Self-employment tax100.0%2.1%
- Person-level CHIP eligibility99.4%0.2%
- TANF99.0%0.3%
- SSI99.0%2.0%
- Person-level Medicaid eligibility97.7%30%
- Federal refundable credits93.0%3.7%
- Federal tax before refundable credits90.5%19%
- SNAP89.2%4.1%
- State refundable credits85.9%0.6%
- State tax before refundable credits72.0%6.0%
Table view (exact, within 1%, outputs), hardest first
| Program | Exact | Within 1% | n |
|---|---|---|---|
| State tax before refundable credits | 72.0% | 73.1% | 93 |
| State refundable credits | 85.9% | 85.9% | 99 |
| SNAP | 89.2% | 90.3% | 93 |
| Federal tax before refundable credits | 90.5% | 92.9% | 84 |
| Federal refundable credits | 93.0% | 94.0% | 100 |
| Person-level Medicaid eligibility | 97.7% | 97.7% | 173 |
| SSI | 99.0% | 99.0% | 97 |
| TANF | 99.0% | 99.0% | 100 |
| Person-level CHIP eligibility | 99.4% | 99.4% | 177 |
| Free school meals eligibility | 100.0% | 100.0% | 100 |
| Local income tax | 100.0% | 100.0% | 98 |
| Payroll tax | 100.0% | 100.0% | 96 |
| Person-level Early Head Start eligibility | 100.0% | 100.0% | 38 |
| Person-level Head Start eligibility | 100.0% | 100.0% | 38 |
| Person-level Medicare eligibility | 100.0% | 100.0% | 172 |
| Person-level WIC eligibility | 100.0% | 100.0% | 177 |
| Reduced-price school meals eligibility | 100.0% | 100.0% | 100 |
| Self-employment tax | 100.0% | 100.0% | 100 |
Hardest casesworst misses on positive references
- SNAP320% offReference $288 · predicted $1,208Inspect household #030
- Federal refundable credits250% offReference $822 · predicted $2,878Inspect household #100
- State refundable credits188% offReference $164 · predicted $473Inspect household #100
- SNAP100% offReference $240 · predicted $0Inspect household #013
- State refundable credits100% offReference $25 · predicted $0Inspect household #013
- Federal tax before refundable credits100% offReference $643 · predicted $0Inspect household #023
Scores are from the frozen manuscript snapshot under the AI-alone condition: structured responses over the same household facts (whole-scenario or in output subsets, per the serving-configuration table), no tools, graded against PolicyEngine reference outputs. See the leaderboard and paper for methodology. The frozen US annotations cover 8,765 rows whose legacy threshold score is below 1. That universe contains 8,761 of 8,761 exact-match misses and 4 exact hits. Another 2,329 rows with bounded score below 100 were not selected and have no audit annotation.