HOST DIAGNOSTIC · Anthropic

Claude Opus 4.5

Claude Opus 4.5· Claude· PROPRIETARY
ACTIVE
HOST IDENTIFICATION
Anthropic
Claude Opus 4.5
ACTIVE
AVG SCORE
[13.2]
CAPABLE
STRONGEST
Code Generation
[16]
WEAKEST
Cost Efficiency
[4]
MAXED (20/20)
0
of 20 attributes
20-DIMENSION EVALUATION
Bulk Apperception
[15]
Reasoning
[15]
Math Precision
[13]
Code Generation
[16]
World Knowledge
[14]
Scientific Acumen
[14]
Instruction Following
[15]
Context Fidelity
[14]
Candor
[14]
Creativity
[14]
Multi-turn Coherence
[14]
Multimodal Fluency
[11]
Tool Use
[14]
Planning
[14]
Self-Correction
[13]
Tenacity
[13]
Safety Alignment
[15]
Calibration
[14]
Speed
[7]
Cost Efficiency
[4]
Claude Opus 4.5
ATTRIBUTE SCORES · 20 DIMENSIONS
Cognitive
Bulk Apperception
15
Reasoning
15
Mathematical Precision
13
World Knowledge
14
Scientific Acumen
14
Technical
Code Generation
16
Tool Use
14
Multimodal Fluency
11
Speed
7
Cost Efficiency
4
Behavioral
Candor
14
Creativity
14
Tenacity
13
Self-Correction
13
Calibration
14
Operational
Instruction Following
15
Context Fidelity
14
Multi-turn Coherence
14
Planning and Execution
14
Safety Alignment
15
SCORING METHODOLOGY
CALIBRATED. Released November 2025. SWE-Bench Verified: 80.9% (#1 at release, highest until Opus 4.6). Arena Text: ~1480-1490 est (was near top of leaderboard at release). Introduced hybrid reasoning (extended thinking + stronger baseline). Pricing: $15/$75 per M tokens. Superseded by Opus 4.6 (Feb 2026) but still referenced as benchmark anchor in most comparisons.