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#63

Claude Opus 4.8

Anthropic Release: 2026-05-28 Tested on: 2026-05-28 17:34 anthropic/claude-opus-4.8::none
(medium) (low) (none)

Summary

Claude Opus 4.8 scores 7.3 on AI BENCHY and ranks #63. It has 10.0 reliability, a 65.0% pass rate, $0.519 total cost, and 3.51s average response time.

What makes Claude Opus 4.8 unique: It stands out most in General Intelligence, where it ranks #1, while Data parsing and extraction is its weakest area at #13.

Score

7.3

Consistency

9.2

Reliability

10.0

Total Cost (Current Price)

$0.519

Total Output Tokens

8,098

Total Input Tokens

0

Input Price

$5.000 / 1M

Output Price

$25.000 / 1M

Tests Correct

Wrong Tests: 8

Attempt pass rate: 65.0%

Flaky tests

2

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

Response Time (avg)

3.51s

Response Time (max): 17.73s

Response Time (total): 70.19s

Extra formatting: 3 Wrong answer: 3 Did not follow instructions: 1 No answer: 1

Generation showcase

Hamster playing table tennis

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

#63 Claude Opus 4.8

none
Cost
$0.053
Time
22.0s
Tokens
2,253 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-06-30 22:01 Re-test 7.2 10.0 $0.539 Compare
2026-06-04 13:44 New test added 7.0 10.0 $0.539 Compare
2026-05-28 17:34 Initial run 7.3 10.0 $0.519 Current run

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-05-28 17:42 $5.000 / 1M $25.000 / 1M

Charts

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Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 6.5 10.0
Coding 6.8 10.0
Combined 9.5 10.0
Data parsing and extraction 7.3 5.8
Domain specific 5.3 7.2
General Intelligence 10.0 10.0
Instructions following 9.9 10.0
Puzzle Solving 7.7 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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