Claude Sonnet 4.5 (Unknown) — benchmark results
Provider: Anthropic. Released 2025-09-29. Access: API.
Unified ELO 1710 ± 35, rank #258 of 1776 rated models, from 7 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| SEAL - EnigmaEval | 6 | Score | 59.6 |
| Terminal-Bench 2.0 | 46.5 | Accuracy (%) | 55.2 |
| Epoch AI - Algotune | 1.52 | Score | 50 |
| Vals AI ProofBench | 19 | Accuracy (%) | 47.8 |
| Epoch AI - Vending Bench 2 | 3838.74 | Score | 47.2 |
| Epoch AI - Rli | 2.08 | Score | 38.9 |
| Epoch AI - Critpt | 1.14 | Score | 36.6 |
Interactive version: theaggregate.ai/model?slug=claude-sonnet-4-5-unknown · How the rankings work · Data refreshed daily, snapshot 2026-07-22.