Model comparison
Mercury 2 vs Mistral Large 4
Mistral Large 4 is the stronger model overall, scoring 43.1 to 39.1 on the Noometry Index. Mercury 2 costs 2.8× less per token, which makes it the better buy when Mistral Large 4's lead doesn't matter for your workload.
Last verified . 12 shared benchmarks.
Mistral AISummary
- They share 12 benchmarks with published results for both. Mercury 2 scores higher in 1 category and Mistral Large 4 in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where Mistral Large 4 leads 48.6 to 33.5.
- Mercury 2 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.68 / $2.09 for Mistral Large 4.
- Mistral Large 4 accepts more context: 1.05M tokens versus 128K.
Side by side
| Mercury 2 | Mistral Large 4 | |
|---|---|---|
| Provider | Inception | Mistral AI |
| Noometry Index | 39.1 | 43.1 |
| Released | 2026-02-20 | 2026-10-06 |
| Weights | Proprietary | Proprietary |
| Context window | 128K | 1.05M |
| Max output | 50K | 262K |
| Input $ / M tokens | $0.25 | $0.68 |
| Output $ / M tokens | $0.75 | $2.09 |
| Results tracked | 17 | 15 |
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Category by category
Coding Mistral Large 4 leads
Mercury 2: 33.5 (#255), Mistral Large 4: 48.6 (#57)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena WebDev | 1171 | 1541 |
| LMArena Coding | 1391 | 1475 |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
Reasoning Mercury 2 leads
Mercury 2: 23.8 (#170), Mistral Large 4: 22.5 (#192)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Hard Prompts | 1362 | 1444 |
| NYT Connections (extended) | — | 27.4% |
| CritPt | 0.8% | — |
Math Not comparable
Mercury 2: —, Mistral Large 4: 40.4 (#91)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Math | — | 1488 |
Knowledge Too close to call
Mercury 2: 36.2 (#172), Mistral Large 4: 36.6 (#166)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Expert | 1358 | 1447 |
| SimpleQA Verified | — | 20% |
| Vectara Hallucination Rate | 12.3% | — |
Multilingual Mistral Large 4 leads
Mercury 2: 46.6 (#157), Mistral Large 4: 52.6 (#82)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Non-English | 1331 | 1415 |
| LMArena Chinese | 1417 | 1491 |
| LMArena Russian | 1304 | 1414 |
Instruction Following Mistral Large 4 leads
Mercury 2: 70.2 (#165), Mistral Large 4: 75.0 (#76)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Instruction Following | 1329 | 1424 |
Long Context Mistral Large 4 leads
Mercury 2: 40.5 (#154), Mistral Large 4: 43.6 (#89)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Longer Query | 1330 | 1429 |
Writing & Preference Mistral Large 4 leads
Mercury 2: 53.8 (#155), Mistral Large 4: 60.4 (#97)
| Benchmark | Mercury 2 | Mistral Large 4 |
|---|---|---|
| LMArena Text | 1355 | 1427 |
| LMArena Creative Writing | 1289 | 1361 |
| LMArena Multi-Turn | 1358 | 1424 |
Frequently asked questions
Is Mercury 2 better than Mistral Large 4?
Mistral Large 4 is the stronger model overall, scoring 43.1 to 39.1 on the Noometry Index. Mercury 2 costs 2.8× less per token, which makes it the better buy when Mistral Large 4's lead doesn't matter for your workload.
Which is cheaper, Mercury 2 or Mistral Large 4?
Mercury 2 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Mistral Large 4 lists at $0.68 and $2.09.
Is Mercury 2 or Mistral Large 4 better for coding?
Mistral Large 4 scores higher on coding benchmarks: 48.6 versus 33.5 in the Noometry coding category.
Which has the bigger context window?
Mistral Large 4 does, with 1.05M tokens against 128K.
How many benchmarks do Mercury 2 and Mistral Large 4 share?
12 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Mistral Large 4 has 15.