Models / Anthropic
Claude 4.5 Sonnet (Reasoning)
Claude 4.5 · Released 2025-09-29
AA Intelligence Index 36.4. Listed on Artificial Analysis with API pricing $3/$15 per 1M tokens. Benchmark rows sync from the AA snapshot — see the ledger on this page.
Frontier model tracked on Artificial Analysis. Use the benchmark ledger below for sourced scores; we do not infer numbers beyond published rows.
Per-benchmark positions
Where Claude 4.5 Sonnet (Reasoning) places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.
No benchmark rows yet for Claude 4.5 Sonnet (Reasoning).
Strongest rows in each family
The three highest-scoring carded models in each capability family. Where Claude 4.5 Sonnet (Reasoning) shows up, it's highlighted.
- 191
- 291
- 391
- 195
- 294
- 394
- 196
- 296
- 396
- 1100
- 2100
- 3100
- 172
- 272
- 371
- 176
- 275
- 375
- 189
- 287
- 387
- 192
- 292
- 391
- 195
- 292
- 391
Best score per family
A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.
Where Claude 4.5 Sonnet (Reasoning) sits on the scatter
Hover or tab any dot for name, score, and input price.
Full benchmark ledger
Every catalog benchmark for Claude 4.5 Sonnet (Reasoning). Scores link to the original source; gaps mean no public row exists yet.
0 of 32 catalog benchmarks have a sourced row for Claude 4.5 Sonnet (Reasoning).
Where the numbers come from
- Artificial Analysis models index· checked 2026-07-27