Noometry

Model comparison

Mercury 2 vs Mistral Large 3

Mercury 2 and Mistral Large 3 score almost the same on the Noometry Index (38.8 vs 38.6), so choose on price, context window or the category you care about most.

Last verified . 13 shared benchmarks.

Mercury 2 Inception

38.8

Rank #167 Confirmed

Mistral Large 3 Mistral AI

38.6

Rank #172 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Mercury 2 scores higher in 2 categories and Mistral Large 3 in 5 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Mercury 2 leads 23.0 to 14.6.
  • Both cost about the same: $0.25 input and $0.75 output per million tokens.
  • Mistral Large 3 accepts more context: 262K tokens versus 128K.
  • Mistral Large 3 has downloadable open weights; the other is API-only.

Side by side

Mercury 2Mistral Large 3
ProviderInceptionMistral AI
Noometry Index38.838.6
Released2026-02-202025-12-02
WeightsProprietaryOpen
Context window128K262K
Max output50K8K
Input $ / M tokens$0.25$0.25
Output $ / M tokens$0.75$0.75
Results tracked1724

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Category by category

Coding Too close to call

Mercury 2: 33.2 (#250), Mistral Large 3: 34.1 (#230)

BenchmarkMercury 2Mistral Large 3
LMArena WebDev11701230
LMArena Coding13911447
SciCode38.7%—
WeirdML43.2%—
ALE-Bench785.58—

Reasoning Mercury 2 leads

Mercury 2: 23.0 (#170), Mistral Large 3: 14.6 (#314)

BenchmarkMercury 2Mistral Large 3
LMArena Hard Prompts13621429
Kagi LLM Benchmark—50.9%
NYT Connections (extended)—7.5%
CritPt0.8%—
Thematic Generalization—23%

Math Not comparable

Mercury 2: —, Mistral Large 3: 36.0 (#131)

BenchmarkMercury 2Mistral Large 3
LMArena Math—1415

Knowledge Too close to call

Mercury 2: 35.6 (#170), Mistral Large 3: 35.5 (#173)

BenchmarkMercury 2Mistral Large 3
Vectara Hallucination Rate12.3%14.5%
LMArena Expert13581421

Multimodal Not comparable

Mercury 2: —, Mistral Large 3: 37.6 (#65)

BenchmarkMercury 2Mistral Large 3
LMArena Vision—1222

Multilingual Mistral Large 3 leads

Mercury 2: 46.8 (#153), Mistral Large 3: 52.6 (#79)

BenchmarkMercury 2Mistral Large 3
LMArena Non-English13311412
LMArena Chinese14161448
LMArena Russian13031412
LMArena French—1456
LMArena German—1438
LMArena Japanese—1399
LMArena Korean—1384
LMArena Spanish—1437

Instruction Following Mistral Large 3 leads

Mercury 2: 70.4 (#161), Mistral Large 3: 74.1 (#104)

BenchmarkMercury 2Mistral Large 3
LMArena Instruction Following13281402

Long Context Mistral Large 3 leads

Mercury 2: 40.4 (#149), Mistral Large 3: 43.1 (#102)

BenchmarkMercury 2Mistral Large 3
LMArena Longer Query13291413

Writing & Preference Mistral Large 3 leads

Mercury 2: 54.0 (#151), Mistral Large 3: 60.2 (#100)

BenchmarkMercury 2Mistral Large 3
LMArena Text13551427
LMArena Creative Writing12891385
LMArena Multi-Turn13581429
EQ-Bench Creative Writing—1412

Frequently asked questions

Is Mercury 2 better than Mistral Large 3?

Mercury 2 and Mistral Large 3 score almost the same on the Noometry Index (38.8 vs 38.6), so choose on price, context window or the category you care about most.

Which is cheaper, Mercury 2 or Mistral Large 3?

Mistral Large 3 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Mercury 2 lists at $0.25 and $0.75.

Is Mercury 2 or Mistral Large 3 better for coding?

They score almost the same on coding (33.2 vs 34.1); test both on your own repository before choosing.

Which has the bigger context window?

Mistral Large 3 does, with 262K tokens against 128K.

How many benchmarks do Mercury 2 and Mistral Large 3 share?

13 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Mistral Large 3 has 24.

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