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#143

Mercury 2

Inception Release: 2026-02-24 Tested on: 2026-05-22 00:39 inception/mercury-2::none
~100BOtherClosedEstimated
(medium) (none)

Summary

Mercury 2 scores 4.6 on AI BENCHY and ranks #143. It has 10.0 reliability, a 25.0% pass rate, $0.009 total cost, and 614ms average response time.

What makes Mercury 2 unique: It stands out most in Domain specific, where it ranks #4, while Anti-AI Tricks is its weakest area at #18. Its total benchmark cost is unusually low for its score range. It is notably fast compared with similar models.

Model facts

Researched on 2026-08-12

Estimated
Parameters
~100B
Architecture
Other
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Diffusion transformer; parameter topology and count are undisclosed.

Score

4.6

Consistency

9.1

Total Output Tokens

2,984

Total Input Tokens

0

Input Price

$0.250 / 1M

Output Price

$0.750 / 1M

Cache Read Price

N/A

Cache Write Price

N/A

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

Tests Correct

Wrong Tests: 16

Attempt pass rate: 25.0%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

614ms

Response Time (max): 1.27s

Response Time (total): 12.28s

Hamster playing table tennis

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

#143 Mercury 2

none
Cost
$0.002
Time
1.8s
Tokens
1,514 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 03:05 Re-test 4.7 10.0 $0.030 Compare
2026-07-16 23:13 New test added 4.6 10.0 $0.030 Compare
2026-06-04 14:27 New test added 4.5 10.0 $0.011 Compare
2026-05-22 00:39 Suite changed 4.6 10.0 $0.009 Current run
2026-04-11 01:44 First recorded run 4.8 N/A $0.007 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Run comparison

RunBenchmark coverageScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-05-22 00:39 · Suite changed60/60 attempts4.69.110.04/2022,9840$0.009614ms
2026-08-14 03:05 · Re-test66/66 attempts4.79.210.04/2229,58489,637$0.030825ms
Difference—-0.1-0.10.000-6600-89637-$0.021-211ms

Benchmark coverage differs: 60/60 attempts (Target: 3 repeats per test) versus 66/66 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 3.0 10.0
Coding 3.5 9.4
Combined 3.0 10.0
Data parsing and extraction 7.3 5.9
Domain specific 5.3 7.2
General Intelligence 4.8 10.0
Instructions following 6.5 10.0
Puzzle Solving 3.1 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models