Compare / Claude Sonnet 4.5 vs Grok 4.20
Claude Sonnet 4.5 vs Grok 4.20
8 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Sonnet 4.5 | Grok 4.20 |
|---|---|---|---|
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 20.7 | 25.7 |
| Artificial Analysisreported | GPQA Diamond% of questions | 83.4% | 91.1% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 17.8% | 34.5% |
| Artificial Analysisreported | IFBench% of instructions | 57.3% | 81.2% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 72.3% | 69.0% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 35.6% | 37.9% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 78.1% | 93.0% |
| Vending-Bench 2reported | Money after a yearUS dollars | $3,838.74 | $4,662.85 |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.