readable AI benchmarks (simplified)

readable AI benchmarks

Anthropic

Claude Opus 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback)

reasoning · closed weights · Sep 17, 2026

Claude Opus 5.5 (Adaptive Reasoning, Medium Effort, Default Fallback) has a Quality Score of 71.0, ranking 10th among 282 scored models. Per 1M tokens, pricing is $4.00 input, $20.00 output, $0.200 cached input, and $5.00 cache write. It has a 1M token context window. Its Reliability Score is 70.2, ranking 12th among 282 scored models, above average (total average: 36.9). Its Value Score is 43.6, high compared with the total Value average of 30.3.

Quality Score71.0coverage 78.8%: missing Epoch General ECI, Coding, CursorBench 3.2, Agentic and DeepSWE v1.1
Value Score43.6
Reliability70.2
Cache Discount95%

Model specification

Reasoning
reasoning
Input modalities
none
Output modalities
none
Context window
1M tokens
Weights
closed weights

Token prices USD per 1M tokens

Input
$4.00
Output
$20.00
Cached Input
$0.200
Cache write
$5.00
Cost per task
$1.34

Capability

Intelligence
51.2
Coding
not available
Agentic
not available
Omniscience
40.3
Correct
64.5%
Blended price
$2.94

Answer outcomes

Attempt rate: 88.8%

Correct 64.5%Incorrect 24.2%Abstained 11.2%

Artificial Analysis benchmarks

GDPval-AA v2
54%
SciCode
59%
Humanity’s Last Exam
55%
CritPt
28%
AA-Omniscience
70%
AA-LCR
84%

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