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Granite 4.2 8B (medium) vs Mercury 2.5 (low)

Granite 4.2 8B (medium) leads on average score with 5.2 vs 5.1. Granite 4.2 8B (medium) has the lower benchmark cost at $0.009 vs $0.011. Mercury 2.5 (low) is faster at 1.35s vs 45.97s, with pass rates of 34.9% vs 39.4%.

Last updated at: 2026-09-08

Compared models

Rank
#259
Total Output Tokens
19,330
Response Time (avg)
45.97s
Total Cost
$0.009
Rank
#265
Total Output Tokens
33,719
Response Time (avg)
1.35s
Total Cost
$0.011
Recommended model Mercury 2.5 (low)

Its score stays close to the best score here (5.1 vs 5.2), while responding about 34.0x faster than Granite 4.2 8B (medium).

Detailed comparison

Metric Granite 4.2 8B Granite 4.2 8B medium Release: 2026-09-02 Mercury 2.5 Mercury 2.5 low Release: 2026-09-08
Score 5.2 5.1
Rank #259 #265
Reliability 8.7 9.8
Consistency 9.6 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 34.9% 39.4%
Flaky tests 1 5
Total Runs 66 66
Cost per result 0.117 0.177
Total Cost $0.009 $0.011
Input Price $0.100 / 1M $0.040 / 1M
Output Price $0.150 / 1M $0.150 / 1M
Total Input Tokens 52,909 138,020
Output Tokens 7,058 6,083
Reasoning Tokens 12,272 27,636
Response Time (avg) 45.97s 1.35s
Response Time (max) 557.96s 7.48s
Response Time (total) 1011.42s 29.74s
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.

#259 IBM: Granite 4.2 8B

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

#265 Mercury 2.5

low
Cost
$0.001
Time
2.4s
Tokens
1,236 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 5.5 10.0 33.3% 0 12.09s 8,439 2,445 3,900
Mercury 2.5 5.5 10.0 33.3% 0 972ms 7,909 521 2,269

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