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uxwizz.com
#246

Mercury 2.5

Inception Release: 2026-09-08 Tested on: 2026-10-01 04:29 inception/mercury-2.5::medium
~100BOtherClosedEstimated
(high) (medium) (low) (none)

Summary

Mercury 2.5 scores 6.4 on AI BENCHY and ranks #246. It has 9.7 reliability, a 63.8% pass rate, $0.034 total cost, and 7.74s average response time.

What makes Mercury 2.5 unique: It stands out most in Puzzle Solving, where it ranks #1, while Coding is its weakest area at #14.

Model facts

Researched on 2026-09-08

Estimated
Parameters
~100B
Architecture
Other
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Inception identifies Mercury 2.5 as a diffusion LLM but does not disclose its parameter count or topology. The low-confidence 100B estimate follows the existing Mercury family records; it is not a vendor-reported count.

Parameter source Availability source

Score

6.4

Consistency

8.3

Reliability

9.7

Total Cost (Current Price)

$0.034

Total Output Tokens

138,946

Total Input Tokens

317,982

Input Price

$0.040 / 1M

Output Price

$0.150 / 1M

Cache Read Price

$0.004 / 1M

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: 11

Attempt pass rate: 63.8%

Flaky tests

5

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

Response Time (avg)

7.74s

Response Time (max): 107.89s

Response Time (total): 178.07s

Wrong answer: 9 API error: 1 Timed out: 1

Hamster playing table tennis

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

#246 Mercury 2.5

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

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-10-01 18:33 $0.040 / 1M $0.150 / 1M $0.004 / 1M N/A

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

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Category Breakdown

Category Score Consistency Tests Correct
Agentic 4.7 3.1
Anti-AI Tricks 10.0 10.0
Coding 5.0 5.1
Combined 6.5 10.0
Data parsing and extraction 10.0 10.0
Domain specific 3.6 7.2
General Intelligence 4.4 9.9
Instructions following 6.4 6.0
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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