Model profile / Anthropic
Claude Sonnet 4.5 is a API model tracked via Artificial Analysis independent evaluations for capability comparison across coding, agents, and reasoning.
Four areas of evidence
Mathematical and scientific problem solving.
Score uses the admitted direct native evidence under the selected method.
Software engineering and programming.
Factual reliability and instruction following.
Tool use, workflows and professional tasks.
Score uses the admitted direct native evidence under the selected method.
Current index snapshot · 2026-09-16. Each category uses its own scale; scores across categories are not directly comparable. Evidence counts describe the retained Capabilities inputs; a family can contain several tasks or configurations. A point lead does not establish superiority.
Performance in context
Claude Sonnet 4.5 is highlighted wherever a compatible measurement is available.
Lumina Capabilities Index
The current Capabilities cohort, with this model highlighted.
Chart loads as you explore
Claude Sonnet 4.5: No exact base-profile release and documented 10K output measurement; other effort/protocol/alias records not substituted
Lumina Capabilities Index
The current Capabilities cohort, with this model highlighted.
Chart loads as you explore
Explore the detail
Score uses the admitted direct native evidence under the selected method.
Score uses the admitted direct native evidence under the selected method.
Score uses the admitted direct native evidence under the selected method.
| Benchmark | Result | Published configuration | Source |
|---|---|---|---|
| AIME 20252025 | 87% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 21 July 2026 ↗Observed 2026-07-21 · checked 2026-07-21source-checked · reference-only |
| AIME 20252025 | 87% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-07-27 ↗Observed 2026-07-27 · checked 2026-07-27source-checked · reference-only |
| AIME 20252025 | 87% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-08-01 ↗Observed 2026-08-01 · checked 2026-08-01source-checked · reference-only |
| ARC-AGI-22025 | 13.6% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 21 July 2026 ↗Observed 2026-07-21 · checked 2026-07-21source-checked · reference-only |
| ARC-AGI-22025 | 13.6% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-07-27 ↗Observed 2026-07-27 · checked 2026-07-27source-checked · reference-only |
| ARC-AGI-22025 | 13.6% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-08-01 ↗Observed 2026-08-01 · checked 2026-08-01source-checked · reference-only |
| Design Arena Website Elo2026 | 1,219 elo | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 21 July 2026 ↗Observed 2026-07-21 · checked 2026-07-21source-checked · reference-only |
| Design Arena Website Elo2026 | 1,219 elo | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-07-27 ↗Observed 2026-07-27 · checked 2026-07-27source-checked · reference-only |
| Design Arena Website Elo2026 | 1,215 elo | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 2026-08-01 ↗Observed 2026-08-01 · checked 2026-08-01source-checked · reference-only |
| FrontierMath v2 Tier 42026 | 4.167% | Exact BenchLM registry variant Claude Sonnet 4.5; bulk export does not retain a complete upstream harness configuration.Source-native system | BenchLM public datasets — 21 July 2026 ↗Observed 2026-07-21 · checked 2026-07-21source-checked · reference-only |
