Grok 4.7
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.
- Local income tax100.0%0.3%
- Person-level Early Head Start eligibility100.0%3.1%
- Person-level Head Start eligibility100.0%1.2%
- Person-level WIC eligibility100.0%0.3%
- Self-employment tax100.0%2.1%
- SSI100.0%2.0%
- Person-level Medicare eligibility99.4%11%
- Reduced-price school meals eligibility99.0%0.1%
- TANF99.0%0.3%
- Person-level Medicaid eligibility97.7%30%
- Free school meals eligibility97.0%0.7%
- Person-level CHIP eligibility94.4%0.2%
- Payroll tax93.8%16%
- Federal refundable credits89.0%3.7%
- SNAP86.0%4.1%
- State refundable credits85.9%0.6%
- State tax before refundable credits65.6%6.0%
- Federal tax before refundable credits57.1%19%
Table view (exact, within 1%, outputs), hardest first
| Program | Exact | Within 1% | n |
|---|---|---|---|
| Federal tax before refundable credits | 57.1% | 69.0% | 84 |
| State tax before refundable credits | 65.6% | 71.0% | 93 |
| State refundable credits | 85.9% | 86.9% | 99 |
| SNAP | 86.0% | 87.1% | 93 |
| Federal refundable credits | 89.0% | 93.0% | 100 |
| Payroll tax | 93.8% | 95.8% | 96 |
| Person-level CHIP eligibility | 94.4% | 94.4% | 177 |
| Free school meals eligibility | 97.0% | 97.0% | 100 |
| Person-level Medicaid eligibility | 97.7% | 97.7% | 173 |
| Reduced-price school meals eligibility | 99.0% | 99.0% | 100 |
| TANF | 99.0% | 99.0% | 100 |
| Person-level Medicare eligibility | 99.4% | 99.4% | 172 |
| Local income tax | 100.0% | 100.0% | 98 |
| Person-level Early Head Start eligibility | 100.0% | 100.0% | 38 |
| Person-level Head Start eligibility | 100.0% | 100.0% | 38 |
| Person-level WIC eligibility | 100.0% | 100.0% | 177 |
| Self-employment tax | 100.0% | 100.0% | 100 |
| SSI | 100.0% | 100.0% | 97 |
Hardest casesworst misses on positive references
- Federal tax before refundable credits514% offReference $500 · predicted $3,068Inspect household #046
- Federal refundable credits250% offReference $822 · predicted $2,878Inspect household #100
- State tax before refundable credits114% offReference $661 · predicted $1,417Inspect household #007
- SNAP100% offReference $240 · predicted $0Inspect household #013
- State refundable credits100% offReference $62 · predicted $0Inspect household #028
- State refundable credits100% offReference $40 · predicted $0Inspect household #029
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.