Model comparison
Granite 4.1 8b vs Mercury 2
Mercury 2 is the stronger model overall, scoring 39.1 to 37.4 on the Noometry Index.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. Granite 4.1 8b scores higher in 1 category and Mercury 2 in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mercury 2 leads 53.8 to 48.1.
- Granite 4.1 8b has downloadable open weights; the other is API-only.
Side by side
| Granite 4.1 8b | Mercury 2 | |
|---|---|---|
| Provider | IBM | Inception |
| Noometry Index | 37.4 | 39.1 |
| Released | — | 2026-02-20 |
| Weights | Open | Proprietary |
| Context window | — | 128K |
| Max output | — | 50K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $0.75 |
| Results tracked | 13 | 17 |
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Category by category
Coding Mercury 2 leads
Granite 4.1 8b: 30.1 (#297), Mercury 2: 33.5 (#255)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena WebDev | 1192 | 1171 |
| LMArena Coding | 1312 | 1391 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |
Reasoning Granite 4.1 8b leads
Granite 4.1 8b: 25.7 (#143), Mercury 2: 23.8 (#170)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1293 | 1362 |
| CritPt | — | 0.8% |
Math Not comparable
Granite 4.1 8b: 36.4 (#166), Mercury 2: —
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Math | 1312 | — |
Knowledge Too close to call
Granite 4.1 8b: 36.1 (#174), Mercury 2: 36.2 (#172)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Expert | 1309 | 1358 |
| Vectara Hallucination Rate | — | 12.3% |
Multilingual Mercury 2 leads
Granite 4.1 8b: 41.7 (#204), Mercury 2: 46.6 (#157)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1261 | 1331 |
| LMArena Chinese | 1337 | 1417 |
| LMArena Russian | 1240 | 1304 |
Instruction Following Mercury 2 leads
Granite 4.1 8b: 66.9 (#203), Mercury 2: 70.2 (#165)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1269 | 1329 |
Long Context Mercury 2 leads
Granite 4.1 8b: 38.7 (#193), Mercury 2: 40.5 (#154)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1275 | 1330 |
Writing & Preference Mercury 2 leads
Granite 4.1 8b: 48.1 (#204), Mercury 2: 53.8 (#155)
| Benchmark | Granite 4.1 8b | Mercury 2 |
|---|---|---|
| LMArena Text | 1290 | 1355 |
| LMArena Creative Writing | 1251 | 1289 |
| LMArena Multi-Turn | 1268 | 1358 |
Frequently asked questions
Is Granite 4.1 8b better than Mercury 2?
Mercury 2 is the stronger model overall, scoring 39.1 to 37.4 on the Noometry Index.
Is Granite 4.1 8b or Mercury 2 better for coding?
Mercury 2 scores higher on coding benchmarks: 33.5 versus 30.1 in the Noometry coding category.
How many benchmarks do Granite 4.1 8b and Mercury 2 share?
12 benchmarks have published results for both models. Granite 4.1 8b has 13 scored results on Noometry and Mercury 2 has 17.