Claude Sonnet 4.5 (Unknown): benchmark results
Provider: Anthropic. Released 2025-09-29. Access: API.
Unified ELO 1639 ± 1, rank #288 of 1761 rated models, from 8 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| Conceptual Reasoning Index - Argument Evaluation (LMCA) | 38.76 | Chance-Corrected Score (0-100) | 74.7 |
| Epoch AI - Dtbench | 83.2 | Score | 68.8 |
| Terminal-Bench 2.0 | 46.5 | Accuracy (%) | 53.6 |
| Epoch AI - Algotune | 1.52 | Score | 50 |
| ProofBench | 19 | Score (self-reported) | 49.1 |
| Vending-Bench 2 | 3838.74 | Money Balance ($) | 44.2 |
| Epoch AI - Critpt | 1.14 | Score | 38.5 |
| Epoch AI - Rli | 2.08 | Score | 29.2 |
Interactive version: theaggregate.ai/model?slug=claude-sonnet-4-5-unknown · How It Works · Data refreshed daily, snapshot 2026-09-05.