Model comparison
Grok-2 (Dec 2024) vs Mercury 2.5
Grok-2 (Dec 2024) and Mercury 2.5 score almost the same on the Noometry Index (33.7 vs 33.5), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in coding, where Mercury 2.5 leads 39.5 to 33.3.
Side by side
| Grok-2 (Dec 2024) | Mercury 2.5 | |
|---|---|---|
| Provider | xAI | Inception |
| Noometry Index | 33.7 | 33.5 |
| Released | 2024-08-13 | 2026-09-08 |
| Weights | Proprietary | Proprietary |
| Context window | — | 260K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.04 |
| Output $ / M tokens | — | $0.15 |
| Results tracked | 34 | 4 |
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Category by category
Coding Mercury 2.5 leads
Grok-2 (Dec 2024): 33.3 (#258), Mercury 2.5: 39.5 (#156)
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| WeirdML | 22.2% | — |
| LiveBench Coding | 46.4% | — |
| LMArena Coding | 1287 | — |
| ALE-Bench | — | 301.65 |
Reasoning Mercury 2.5 leads
Grok-2 (Dec 2024): 16.9 (#299), Mercury 2.5: 22.4 (#193)
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| SimpleBench | 22.7% | — |
| CritPt | — | 0% |
| LiveBench Reasoning | 54.8% | — |
| LMArena Hard Prompts | 1272 | — |
| DTBench | 65.2% | — |
| LiveBench Data Analysis | 54.5% | — |
| Epoch Capabilities Index | 130.48 | — |
| LiveBench | 54.3% | — |
Math Mercury 2.5 leads
Grok-2 (Dec 2024): 20.8 (#284), Mercury 2.5: 23.3 (#272)
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 11.5% | — |
| ProofBench | — | 3% |
| LiveBench Math | 54.9% | — |
| LMArena Math | 1283 | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath (Feb 2025 set) | 0.7% | — |
Knowledge Not comparable
Grok-2 (Dec 2024): 29.8 (#233), Mercury 2.5: —
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| GPQA Diamond | 53.8% | — |
| Confabulations | 20.1% | — |
| LMArena Expert | 1254 | — |
Multilingual Not comparable
Grok-2 (Dec 2024): 43.1 (#188), Mercury 2.5: —
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1282 | — |
| LMArena Chinese | 1289 | — |
| LMArena French | 1318 | — |
| LMArena German | 1287 | — |
| LMArena Japanese | 1244 | — |
| LMArena Korean | 1237 | — |
| LMArena Russian | 1286 | — |
| LMArena Spanish | 1281 | — |
Instruction Following Not comparable
Grok-2 (Dec 2024): 66.9 (#202), Mercury 2.5: —
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| LiveBench Instruction Following | 69.6% | — |
| LMArena Instruction Following | 1270 | — |
Long Context Not comparable
Grok-2 (Dec 2024): 38.8 (#190), Mercury 2.5: —
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1276 | — |
Writing & Preference Not comparable
Grok-2 (Dec 2024): 48.6 (#198), Mercury 2.5: —
| Benchmark | Grok-2 (Dec 2024) | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1305 | — |
| LMArena Creative Writing | 1284 | — |
| Short-Story Creative Writing | 63.6% | — |
| LMArena Multi-Turn | 1290 | — |
| LiveBench Language | 45.6% | — |
Frequently asked questions
Is Grok-2 (Dec 2024) better than Mercury 2.5?
Grok-2 (Dec 2024) and Mercury 2.5 score almost the same on the Noometry Index (33.7 vs 33.5), so choose on price, context window or the category you care about most.
Is Grok-2 (Dec 2024) or Mercury 2.5 better for coding?
Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 33.3 in the Noometry coding category.
How many benchmarks do Grok-2 (Dec 2024) and Mercury 2.5 share?
0 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and Mercury 2.5 has 4.