Model comparison
Mercury 2.5 vs Phi 3 Small 8k Instruct
Mercury 2.5 is the stronger model overall, scoring 33.5 to 29.3 on the Noometry Index.
Last verified . 0 shared benchmarks.
MicrosoftSummary
- The widest gap is in coding, where Mercury 2.5 leads 39.5 to 27.9.
- Phi 3 Small 8k Instruct has downloadable open weights; the other is API-only.
Side by side
| Mercury 2.5 | Phi 3 Small 8k Instruct | |
|---|---|---|
| Provider | Inception | Microsoft |
| Noometry Index | 33.5 | 29.3 |
| Released | 2026-09-08 | 2024-04-23 |
| Weights | Proprietary | Open |
| Context window | 260K | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.04 | — |
| Output $ / M tokens | $0.15 | — |
| Results tracked | 4 | 32 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Mercury 2.5 leads
Mercury 2.5: 39.5 (#156), Phi 3 Small 8k Instruct: 27.9 (#318)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| SciCode | 38.5% | — |
| LiveBench Coding | — | 20.3% |
| LMArena Coding | — | 1101 |
| ALE-Bench | 301.65 | — |
Reasoning Mercury 2.5 leads
Mercury 2.5: 22.4 (#193), Phi 3 Small 8k Instruct: 14.8 (#323)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| CritPt | 0% | — |
| LiveBench Reasoning | — | 15.9% |
| LMArena Hard Prompts | — | 1100 |
| LiveBench Data Analysis | — | 30.3% |
| Adversarial NLI | — | 58.1% |
| BIG-Bench Hard | — | 79.1% |
| HellaSwag | — | 77% |
| LiveBench | — | 24% |
| WinoGrande | — | 81.5% |
Math Phi 3 Small 8k Instruct leads
Mercury 2.5: 23.3 (#272), Phi 3 Small 8k Instruct: 27.6 (#248)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| ProofBench | 3% | — |
| LiveBench Math | — | 17.6% |
| LMArena Math | — | 1151 |
Knowledge Not comparable
Mercury 2.5: —, Phi 3 Small 8k Instruct: 29.1 (#240)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Expert | — | 1067 |
| ARC (AI2) Challenge | — | 90.7% |
| MMLU | — | 75.7% |
| OpenBookQA | — | 88% |
| TriviaQA | — | 58.1% |
Multilingual Not comparable
Mercury 2.5: —, Phi 3 Small 8k Instruct: 28.5 (#272)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Non-English | — | 1058 |
| LMArena Chinese | — | 1061 |
| LMArena French | — | 1135 |
| LMArena German | — | 1080 |
| LMArena Japanese | — | 966 |
| LMArena Korean | — | 894 |
| LMArena Russian | — | 1111 |
| LMArena Spanish | — | 1111 |
Instruction Following Not comparable
Mercury 2.5: —, Phi 3 Small 8k Instruct: 51.9 (#292)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LiveBench Instruction Following | — | 47.2% |
| LMArena Instruction Following | — | 1087 |
Long Context Not comparable
Mercury 2.5: —, Phi 3 Small 8k Instruct: 33.0 (#267)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Longer Query | — | 1088 |
Writing & Preference Not comparable
Mercury 2.5: —, Phi 3 Small 8k Instruct: 31.1 (#284)
| Benchmark | Mercury 2.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Text | — | 1110 |
| LMArena Creative Writing | — | 1083 |
| LMArena Multi-Turn | — | 1068 |
| LiveBench Language | — | 12.9% |
Frequently asked questions
Is Mercury 2.5 better than Phi 3 Small 8k Instruct?
Mercury 2.5 is the stronger model overall, scoring 33.5 to 29.3 on the Noometry Index.
Is Mercury 2.5 or Phi 3 Small 8k Instruct better for coding?
Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 27.9 in the Noometry coding category.
How many benchmarks do Mercury 2.5 and Phi 3 Small 8k Instruct share?
0 benchmarks have published results for both models. Mercury 2.5 has 4 scored results on Noometry and Phi 3 Small 8k Instruct has 32.