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Granite 4.2 8B (high) vs Mercury 2.5 Preview

The average score is effectively tied at 4.7 vs 4.7. Mercury 2.5 Preview has the lower benchmark cost at $0.023 vs $0.161. Mercury 2.5 Preview is faster at 7.05s vs 235.35s, with pass rates of 37.7% vs 29.0%.

Last updated at: 2026-10-01

Compared models

Rank
#318
Total Output Tokens
661,367
Response Time (avg)
235.35s
Total Cost
$0.161
Rank
#314
Total Output Tokens
86,367
Response Time (avg)
7.05s
Total Cost
$0.023
Recommended model Mercury 2.5 Preview

It has the best score here (4.7), while costing about 7.2x less than Granite 4.2 8B (high).

Detailed comparison

Metric Granite 4.2 8B Granite 4.2 8B high Release: 2026-09-02 Mercury 2.5 Preview Mercury 2.5 Preview none Release: 2026-09-02
Score 4.7 4.7
Rank #318 #314
Reliability 8.2 9.9
Consistency 6.4 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 37.7% 29.0%
Flaky tests 10 5
Total Runs 69 69
Cost per result 2.751 0.559
Total Cost $0.161 $0.023
Input Price $0.060 / 1M $0.000 / 1M
Output Price $0.250 / 1M $0.000 / 1M
Total Input Tokens 282,658 250,541
Output Tokens 198,563 86,367
Reasoning Tokens 462,804 0
Response Time (avg) 235.35s 7.05s
Response Time (max) 685.87s 84.96s
Response Time (total) 5413.09s 162.25s
Parameters 8B ~100B
Availability Open source Closed

Model generation showcase

Hamster playing table tennis

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

#318 IBM: Granite 4.2 8B

high
Provider returned error
Cost
$0.000
Time
0.2s
Tokens
0 tok

#314 Mercury 2.5 Preview

none
Invalid SVG
Cost
$0.001
Time
3.3s
Tokens
3,122 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
Granite 4.2 8B 3.8 4.3 33.3% 2 515.34s 7,047 42,438 154,749
Mercury 2.5 Preview 4.7 7.9 22.2% 1 459ms 7,850 650 0

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