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Mercury 2.5 Preview (medium) vs Grok Build 0.1 (medium)

Mercury 2.5 Preview (medium) leads on average score with 6.8 vs 6.7. Mercury 2.5 Preview (medium) has the lower benchmark cost at $0.039 vs $1.419. Mercury 2.5 Preview (medium) is faster at 6.66s vs 55.13s, with pass rates of 66.7% vs 58.0%.

Last updated at: 2026-10-16

Compared models

Rank
#199
Total Output Tokens
150,107
Response Time (avg)
6.66s
Total Cost
$0.039
Rank
#204
Total Output Tokens
529,806
Response Time (avg)
55.13s
Total Cost
$1.419
Recommended model Mercury 2.5 Preview (medium)

It has the best score here (6.8), while costing about 36.9x less than Grok Build 0.1 (medium).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview medium Release: 2026-09-02 Grok Build 0.1 Grok Build 0.1 medium Release: 2026-05-21
Score 6.8 6.7
Rank #199 #204
Reliability 10.0 10.0
Consistency 9.6 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 66.7% 58.0%
Flaky tests 1 1
Total Runs 69 69
Cost per result 0.244 10.910
Total Cost $0.039 $1.419
Input Price $0.040 / 1M $1.000 / 1M
Output Price $0.150 / 1M $2.000 / 1M
Cache Read Price N/A $0.200 / 1M
Cache Write Price N/A N/A
Total Input Tokens 397,291 358,616
Output Tokens 6,355 9,651
Reasoning Tokens 143,752 520,155
Response Time (avg) 6.66s 55.13s
Response Time (max) 74.63s 252.69s
Response Time (total) 153.29s 1268.10s
Parameters ~100B ~300B total (~30B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#199 Mercury 2.5 Preview

medium
Cost
$0.001
Time
2.7s
Tokens
2,241 tok

#204 SpaceXAI: Grok Build 0.1

medium
Cost
$0.028
Time
81.3s
Tokens
14,009 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
Mercury 2.5 Preview 7.8 10.0 66.7% 0 3.86s 7,839 552 22,126
Grok Build 0.1 5.7 9.7 33.3% 0 108.46s 8,304 1,138 161,452

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