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DeepSeek: DeepSeek V4 Pro vs Inception: Mercury 2

Last updated at: 2026-04-24

Metric DeepSeek V4 Pro DeepSeek V4 Pro high Release: 2026-04-24 Mercury 2 Mercury 2 medium Release: 2026-02-24
Score 7.4 6.5
Rank #50 #62
Consistency 10.0 8.6
Tests Correct
Attempt pass rate 61.1% 53.7%
Flaky tests 0 3
Total Runs 24 54
Cost per result 1.385 0.580
Total Cost $0.153 $0.047
Input Price $1.740 / 1M $0.250 / 1M
Output Price $3.480 / 1M $0.750 / 1M
Output Tokens 584 3,972
Reasoning Tokens 37,708 48,333
Response Time (avg) 78.45s 2.21s
Response Time (max) 351.99s 14.63s
Response Time (total) 1255.22s 37.51s

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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 8.3 10.0 75.0% 0 32.12s 64 1,799
Mercury 2 6.9 9.9 50.0% 0 1.12s 2,546 2,609
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 93.00s 82 2,808
Mercury 2 10.0 10.0 100.0% 0 1.53s 249 2,213
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 71.08s 134 2,163
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
DeepSeek V4 Pro 10.0 10.0 100.0% 0 63.00s 67 1,071
Mercury 2 7.3 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
DeepSeek V4 Pro 5.3 10.0 33.3% 0 202.56s 11 25,343
Mercury 2 2.9 7.2 11.1% 1 6.48s 41 30,754
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.0 10.0 0.0% 0 26.96s 51 734
Mercury 2 4.8 10.0 0.0% 0 821ms 137 542
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 3.0 10.0 0.0% 0 0ms 0 0
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
DeepSeek V4 Pro 7.7 10.0 66.7% 0 63.66s 91 3,617
Mercury 2 3.9 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
DeepSeek V4 Pro 10.0 10.0 100.0% 0 11.05s 84 173
Mercury 2 10.0 10.0 100.0% 0 1.89s 180 1,956

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