PolicyBench
Grok 4.6
xAI · AI alone, no tools
United States rank
#8 of 32
US exact
82.8%
United States
United States benchmark
Exact match
82.8%
Bounded score
93.5%
Parse rate
100.0%
Eligibility flags
962/984
Score by programhardest first
| Program | Exact | Within 1% | n |
|---|---|---|---|
| Federal tax before refundable credits | 50.0% | 51.0% | 100 |
| State tax before refundable credits | 58.0% | 65.0% | 100 |
| SNAP | 77.0% | 78.0% | 100 |
| State refundable credits | 83.0% | 83.0% | 100 |
| Payroll tax | 88.0% | 93.0% | 100 |
| Federal refundable credits | 90.0% | 91.0% | 100 |
| Person-level CHIP eligibility | 94.4% | 94.4% | 177 |
| Person-level Medicaid eligibility | 96.0% | 96.0% | 177 |
| SSI | 97.0% | 98.0% | 100 |
| Reduced-price school meals eligibility | 98.0% | 98.0% | 100 |
| Person-level Medicare eligibility | 98.9% | 98.9% | 177 |
| Free school meals eligibility | 99.0% | 99.0% | 100 |
| TANF | 99.0% | 99.0% | 100 |
| Local income tax | 100.0% | 100.0% | 100 |
| 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 |
Hardest casesworst misses on positive references
- Federal tax before refundable credits698% offReference $1,346 · predicted $10,742Inspect household #039
- SNAP660% offReference $461 · predicted $3,504Inspect household #023
- Federal tax before refundable credits511% offReference $500 · predicted $3,055Inspect household #046
- State tax before refundable credits287% offReference $514 · predicted $1,990Inspect household #039
- Federal tax before refundable credits206% offReference $5,200 · predicted $15,933Inspect household #123
- State tax before refundable credits102% offReference $756 · predicted $1,526Inspect household #007
Scores are from the frozen manuscript snapshot under the AI-alone condition: one structured response per household, no tools, graded against PolicyEngine reference outputs. See the leaderboard and paper for methodology.