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uxwizz.com
#21

Claude Opus 5.5

Anthropic Release: 2026-09-23 Tested on: 2026-09-23 05:09 anthropic/claude-opus-5.5::high
~5T total (~500B active)MoEClosedEstimated
(high) (medium) (low) (none)

Summary

Claude Opus 5.5 scores 9.3 on AI BENCHY and ranks #21. It has 10.0 reliability, a 86.4% pass rate, $1.266 total cost, and 25.88s average response time.

Model facts

Researched on 2026-09-23

Estimated
Parameters
~5T total (~500B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Vendor does not disclose parameter counts or architecture. Low-confidence catalog estimate carries forward the prior anthropic/claude-opus-5 family estimate; the linked announcement establishes identity and availability, not these counts.

Parameter source Availability source

Score

9.3

Consistency

9.3

Reliability

10.0

Total Cost (Current Price)

$1.266

Total Output Tokens

36,457

Total Input Tokens

134,020

Input Price

$4.000 / 1M

Output Price

$20.000 / 1M

Tests Correct

Wrong Tests: 4

Attempt pass rate: 86.4%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

25.88s

Response Time (max): 95.95s

Response Time (total): 569.33s

Wrong answer: 2 Did not follow instructions: 1 No answer: 1

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#21 Claude Opus 5.5

high
Cost
$0.136
Time
75.6s
Tokens
6,934 tok

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 10.0 10.0
Coding 10.0 10.0
Combined 10.0 10.0
Data parsing and extraction 10.0 10.0
Domain specific 5.3 7.2
General Intelligence 10.0 10.0
Instructions following 10.0 10.0
Puzzle Solving 8.7 7.7
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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