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Model · Artificial Analysis

Anthropic/Claude Opus 5.5 (Medium, Default Fallback)

Benchmark data by Artificial Analysis.

Author / organizationAnthropic
AccessHosted API (no weights listed here)
Price per million tokens$4 in · $20 out
Intelligence Index51.2
Output speed82 tokens/s
Tasktext-generation
Created22 September 2026
Last updated at source—
hostedtext-generation
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Popularity, last 3 days

5,120 now. Counts as reported by the source, snapshotted daily by Silytics.

Reported results

DatasetMetricValue
Artificial AnalysisHumanity's Last Exam0.547
Artificial AnalysisIntelligence Index51.2
Artificial AnalysisSciCode0.593
Artificial Analysislcr0.8433
Artificial Analysisterminalbench v4 00.5253

Reported by the model's authors in the model card. Not independently verified, and setups differ between authors, so scores from different models are not always comparable. Each value links to its source.

Price and speed history

USD per million tokens

0510152010-1510-1610-17Input · 10-15: 4Input · 10-16: 4Input · 10-17: 4Output · 10-15: 20Output · 10-16: 20Output · 10-17: 20
InputOutput

Output speed (tokens per second)

022.54567.59010-1510-1610-17Speed · 10-15: 71.031Speed · 10-16: 80.428Speed · 10-17: 81.597

More from Anthropic

Silytics shows public metadata from Artificial Analysis and links to the original. Information may be incomplete or out of date. Last refreshed 17 October 2026. Licenses and terms of the original apply to the work itself. Not financial, legal or professional advice.