Model comparison

GPT-4.1 mini vs Mercury

Mercury is the stronger model overall, scoring 37.3 to 33.5 on the Noometry Index.

Last verified . 9 shared benchmarks.

GPT-4.1 mini OpenAI

33.5

Rank #232 Confirmed

Mercury Inception

37.3

Rank #192 Confirmed

Summary

  • They share 9 benchmarks with published results for both. GPT-4.1 mini scores higher in 3 categories and Mercury in 3 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in instruction following, where GPT-4.1 mini leads 73.9 to 65.3.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 48.6% for GPT-4.1 mini and 21.6% for Mercury.

Side by side

GPT-4.1 mini and Mercury specifications
GPT-4.1 miniMercury
ProviderOpenAIInception
Noometry Index33.537.3
Released2025-04-14—
WeightsProprietaryProprietary
Context window1.05M—
Max output33K—
Input $ / M tokens$0.40—
Output $ / M tokens$1.60—
Results tracked479

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Category by category

Coding Mercury leads

GPT-4.1 mini: 30.4 (#286), Mercury: 38.1 (#164)

Coding benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Coding13671323
SWE-bench Verified (bash only)23.9%—
Aider Polyglot32.4%—
SciCode40.4%—
WeirdML37.6%—
BigCodeBench Instruct48.9%—
CadEval16%—

Agentic & Tool Use Not comparable

GPT-4.1 mini: 33.0 (#52), Mercury: —

Agentic & Tool Use benchmarks
BenchmarkGPT-4.1 miniMercury
Berkeley Function Calling Leaderboard50.5%—

Reasoning Mercury leads

GPT-4.1 mini: 10.9 (#335), Mercury: 16.8 (#288)

Reasoning benchmarks
BenchmarkGPT-4.1 miniMercury
Kagi LLM Benchmark48.6%21.6%
LMArena Hard Prompts13491284
ARC-AGI-20%—
ARC-AGI-13.5%—
CritPt0%—
Chess Puzzles7%—
Mystery Game Puzzles7%—
DTBench68.8%—
LMCA21.1%—
Epoch Capabilities Index135.01—

Math Not comparable

GPT-4.1 mini: 23.1 (#264), Mercury: —

Math benchmarks
BenchmarkGPT-4.1 miniMercury
FrontierMath (Tiers 1-3)6.7%—
OTIS Mock AIME 2024-202544.7%—
Omni-MATH49.1%—
LMArena Math1343—
MATH Level 587.3%—
FrontierMath (Feb 2025 set)4.5%—

Knowledge Not comparable

GPT-4.1 mini: 34.7 (#183), Mercury: —

Knowledge benchmarks
BenchmarkGPT-4.1 miniMercury
GPQA Diamond65.8%—
SimpleQA Verified12.7%—
MMLU-Pro78.3%—
GPQA (HELM)61.4%—
LMArena Expert1338—

Multimodal Not comparable

GPT-4.1 mini: 35.2 (#77), Mercury: —

Multimodal benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Vision1181—

Multilingual GPT-4.1 mini leads

GPT-4.1 mini: 45.9 (#161), Mercury: 41.7 (#201)

Multilingual benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Non-English13181259
LMArena Chinese1329—
LMArena French1357—
LMArena German1349—
LMArena Japanese1291—
LMArena Korean1298—
LMArena Russian1324—
LMArena Spanish1319—

Instruction Following GPT-4.1 mini leads

GPT-4.1 mini: 73.9 (#113), Mercury: 65.3 (#220)

Instruction Following benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Instruction Following13321238
IFEval90.4%—

Long Context Mercury leads

GPT-4.1 mini: 31.8 (#270), Mercury: 38.3 (#193)

Long Context benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Longer Query13441264
Fiction.LiveBench44.4%—

Writing & Preference GPT-4.1 mini leads

GPT-4.1 mini: 48.8 (#193), Mercury: 46.2 (#216)

Writing & Preference benchmarks
BenchmarkGPT-4.1 miniMercury
LMArena Text13411282
LMArena Creative Writing13001186
LMArena Multi-Turn13541283
EQ-Bench Creative Writing1147—
WildBench83.8%—

Frequently asked questions

Is GPT-4.1 mini better than Mercury?

Mercury is the stronger model overall, scoring 37.3 to 33.5 on the Noometry Index.

Is GPT-4.1 mini or Mercury better for coding?

Mercury scores higher on coding benchmarks: 38.1 versus 30.4 in the Noometry coding category.

How many benchmarks do GPT-4.1 mini and Mercury share?

9 benchmarks have published results for both models. GPT-4.1 mini has 47 scored results on Noometry and Mercury has 9.

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