← Web Search LLM Leaderboard

Mercury 3

Inception · closed weights · data as of

Mercury 3 ranks 5 of 10 on the Web Search LLM Leaderboard, across 4,703 questions from BrowseComp, DeepSearchQA, HLE and Firecrawl Search Bench. It shares that rank with DeepSeek V4.1 Flash (1017).

Score with Firecrawl Alexandria68.7
+42.4 points of lift, from 26.4 without
050100
Without With Firecrawl Alexandria

Mercury 3 on each question set

Points out of 100. Rank is among the 10 models on that set, by score with Firecrawl Alexandria; vs median is the gap to the median model there. Firecrawl Search Bench is our own question set; its questions are not published.

Question setWithoutWithLiftRankvs median
BrowseComp12.254.4+42.3#6−2.0
DeepSearchQA41.780.4+38.7#5+0.1
HLE36.446.2+9.7#6−1.9
Firecrawl Search Bench15.293.9+78.8#50.0

Cost and speed

$242 per 1,000 questions, model tokens plus Firecrawl credits: 1.1× the median model, 6th cheapest of 10.

Time per question
214 s
average, 5th fastest of 10
Median time
107 s
set-weighted, half take longer
90th percentile time
576 s
set-weighted, 1 in 10 take longer
Failed
0.1%
of questions, scored 0

Mercury 3 vs its closest rivals

  • DeepSeek V4.1 Flash (1017) scores 68.9, within the margin of error. It costs 1.2× as much and takes 368 s per question on average.
  • MiniMax M3.1 Flash scores 64.8, clearly behind. It is 1.2× cheaper and takes 407 s per question on average.
  • Claude Haiku 5.5 scores 61.9, clearly behind. It is 1.5× cheaper and takes 156 s per question on average.
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