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Anthropic: Claude Sonnet 4.6 vs Inception: Mercury 2

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Last updated at: 2026-03-05

Metric Anthropic: Claude Sonnet 4.6 none Release: 2026-02-17 Inception: Mercury 2 medium Release: 2026-02-24
Avg Score 6.9 5.4
Rank #25 #35
Tests Correct
Consistency 10.0 8.3
Cost per result 2.460 0.622
Total Cost $0.246 $0.044
Attempt pass rate 66.7% 57.8%
Flaky tests 0 3
common.totalRuns 45 (15 x 3) 45 (15 x 3)
Output Tokens 6,703 3,571
Reasoning Tokens 0 45,379
Response Time (avg) 5.94s 2.47s
Response Time (max) 23.84s 14.63s
Response Time (total) 47.55s 34.56s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 4.0 10.0 33.3% 0 4.83s 1,199 0
Inception: Mercury 2 7.3 9.8 66.7% 0 1.30s 2,531 2,410
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 9.0 10.0 100.0% 0 23.84s 3,766 0
Inception: Mercury 2 10.0 10.0 100.0% 0 3.28s 268 4,887
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 9.9 10.0 100.0% 0 3.43s 252 0
Inception: Mercury 2 5.5 5.9 83.3% 1 1.11s 183 1,656
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 7.0 10.0 66.7% 0 3.54s 413 0
Inception: Mercury 2 10.0 7.2 11.1% 1 6.48s 41 30,754
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 5.5 10.0 50.0% 0 1.96s 90 0
Inception: Mercury 2 10.0 10.0 100.0% 0 1.07s 14 958
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 7.0 10.0 66.7% 0 2.92s 536 0
Inception: Mercury 2 1.7 7.5 22.2% 1 934ms 354 2,758
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.11s 447 0
Inception: Mercury 2 10.0 10.0 100.0% 0 1.89s 180 1,956

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