readable AI benchmarks (simplified)

readable AI benchmarks

Anthropic

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

reasoning · closed weights · Sep 22, 2026

Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) has a Quality Score of 75.7, ranking 1st 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 accepts text, image, and pdf input, outputs text, and has a 1M token context window. Its Reliability Score is 73.2, ranking 1st among 282 scored models, above average (total average: 36.9). Its Value Score is 47.9, high compared with the total Value average of 30.3.

Quality Score75.7coverage 78.8%: missing Epoch General ECI, Coding, CursorBench 3.2, Agentic and DeepSWE v1.1
Value Score47.9
Reliability73.2
Cache Discount95%

Model specification

Reasoning
reasoning
Input modalities
text, image, pdf
Output modalities
text
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
$5.98

Capability

Intelligence
57.6
Coding
not available
Agentic
not available
Omniscience
46.4
Correct
66.2%
Blended price
$2.94

Answer outcomes

Attempt rate: 86.0%

Correct 66.2%Incorrect 19.8%Abstained 14.0%

Artificial Analysis benchmarks

GDPval-AA v2
67%
SciCode
67%
Humanity’s Last Exam
61%
CritPt
32%
AA-Omniscience
73%
AA-LCR
85%

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