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Mercury 2.5 (medium) vs Laguna XS 2.1 (medium)

Laguna XS 2.1 (medium) leads on average score with 6.4 vs 6.4. Mercury 2.5 (medium) has the lower benchmark cost at $0.034 vs $0.083. Mercury 2.5 (medium) is faster at 7.74s vs 48.97s, with pass rates of 63.8% vs 46.4%.

Last updated at: 2026-10-01

Compared models

Rank
#206
Total Output Tokens
138,946
Response Time (avg)
7.74s
Total Cost
$0.034
Rank
#200
Total Output Tokens
538,292
Response Time (avg)
48.97s
Total Cost
$0.083
Recommended model Mercury 2.5 (medium)

Its score stays close to the best score here (6.4 vs 6.4), while costing about 2.5x less than Laguna XS 2.1 (medium).

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 medium Release: 2026-09-08 Laguna XS 2.1 Laguna XS 2.1 medium Release: 2026-07-02 Free Available
Score 6.4 6.4
Rank #206 #200
Reliability 9.7 10.0
Consistency 8.3 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 63.8% 46.4%
Flaky tests 5 3
Total Runs 69 69
Cost per result 0.280 0.922
Total Cost $0.034 $0.083
Input Price $0.040 / 1M $0.060 / 1M
Output Price $0.150 / 1M $0.120 / 1M
Cache Read Price $0.004 / 1M $0.030 / 1M
Cache Write Price N/A N/A
Total Input Tokens 317,982 352,516
Output Tokens 3,918 33,786
Reasoning Tokens 135,028 504,506
Response Time (avg) 7.74s 48.97s
Response Time (max) 107.89s 422.72s
Response Time (total) 178.07s 1126.35s
Parameters ~100B 33B total (3B active)
Availability Closed Weights available

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.

#206 Mercury 2.5

medium
Cost
$0.001
Time
3.8s
Tokens
3,386 tok

#200 Laguna XS 2.1

medium
Cost
$0.001
Time
30.6s
Tokens
4,678 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 5.0 5.1 44.5% 2 3.70s 7,807 488 21,857
Laguna XS 2.1 5.5 10.0 33.3% 0 70.35s 7,995 23,767 83,258

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