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Anthropic: Claude Opus 4.8 vs Thinking Machines: Inkling

Inkling (medium) leads on average score with 8.0 vs 7.8. Inkling (medium) has the lower benchmark cost at $0.391 vs $2.077. Claude Opus 4.8 (low) is faster at 12.74s vs 16.21s, with pass rates of 80.3% vs 78.8%.

Recommended modelInkling (medium)It has the best score here (8.0), while costing about 5.3x less than Claude Opus 4.8 (low).

Last updated at: 2026-07-18

Metric Claude Opus 4.8 Claude Opus 4.8 low Release: 2026-05-28 Inkling Inkling medium Release: 2026-07-18
Score 7.8 8.0
Rank #41 #32
Reliability 10.0 9.8
Consistency 8.9 8.2
Tests Correct
Attempt pass rate 80.3% 78.8%
Flaky tests 3 5
Total Runs 66 66
Cost per result 12.979 2.604
Total Cost $2.077 $0.391
Input Price $5.000 / 1M $1.000 / 1M
Output Price $25.000 / 1M $4.050 / 1M
Total Input Tokens 156,525 124,053
Output Tokens 43,141 12,189
Reasoning Tokens 8,617 53,597
Response Time (avg) 12.74s 16.21s
Response Time (max) 127.97s 85.12s
Response Time (total) 280.29s 356.54s

Hamster playing table tennis

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

#41 Claude Opus 4.8

low
Cost
$0.031
Time
14.1s
Tokens
1,345 tok

#32 Thinking Machines: Inkling

medium
Cost
$0.004
Time
11.2s
Tokens
852 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 6.6 4.6 77.8% 2 7.58s 10,590 3,637 809
Inkling 8.4 7.8 77.8% 1 25.20s 7,374 525 14,457

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