Model comparison
Codellama 34b Instruct vs Mercury 2
Mercury 2 is the stronger model overall, scoring 39.1 to 30.8 on the Noometry Index.
Last verified . 9 shared benchmarks.
MetaSummary
- They share 9 benchmarks with published results for both. Codellama 34b Instruct scores higher in 0 categories 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 28.2.
- Codellama 34b Instruct has downloadable open weights; the other is API-only.
Side by side
| Codellama 34b Instruct | Mercury 2 | |
|---|---|---|
| Provider | Meta | Inception |
| Noometry Index | 30.8 | 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 | 14 | 17 |
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Category by category
Coding Mercury 2 leads
Codellama 34b Instruct: 28.5 (#314), Mercury 2: 33.5 (#255)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Coding | 1046 | 1391 |
| LMArena WebDev | — | 1171 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| BigCodeBench Instruct | 29% | — |
| BigCodeBench Complete | 37.1% | — |
| ALE-Bench | — | 785.58 |
| HumanEval+ | 43.9% | — |
| MBPP+ | 56.3% | — |
Reasoning Mercury 2 leads
Codellama 34b Instruct: 19.6 (#255), Mercury 2: 23.8 (#170)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1032 | 1362 |
| CritPt | — | 0.8% |
Math Not comparable
Codellama 34b Instruct: 31.0 (#230), Mercury 2: —
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Math | 1056 | — |
Knowledge Not comparable
Codellama 34b Instruct: —, Mercury 2: 36.2 (#172)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| Vectara Hallucination Rate | — | 12.3% |
| LMArena Expert | — | 1358 |
Multilingual Mercury 2 leads
Codellama 34b Instruct: 25.8 (#284), Mercury 2: 46.6 (#157)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1011 | 1331 |
| LMArena Chinese | 976 | 1417 |
| LMArena Russian | — | 1304 |
Instruction Following Mercury 2 leads
Codellama 34b Instruct: 52.2 (#291), Mercury 2: 70.2 (#165)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1028 | 1329 |
Long Context Mercury 2 leads
Codellama 34b Instruct: 30.9 (#284), Mercury 2: 40.5 (#154)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1013 | 1330 |
Writing & Preference Mercury 2 leads
Codellama 34b Instruct: 28.2 (#297), Mercury 2: 53.8 (#155)
| Benchmark | Codellama 34b Instruct | Mercury 2 |
|---|---|---|
| LMArena Text | 1066 | 1355 |
| LMArena Creative Writing | 1032 | 1289 |
| LMArena Multi-Turn | 1015 | 1358 |
Frequently asked questions
Is Codellama 34b Instruct better than Mercury 2?
Mercury 2 is the stronger model overall, scoring 39.1 to 30.8 on the Noometry Index.
Is Codellama 34b Instruct or Mercury 2 better for coding?
Mercury 2 scores higher on coding benchmarks: 33.5 versus 28.5 in the Noometry coding category.
How many benchmarks do Codellama 34b Instruct and Mercury 2 share?
9 benchmarks have published results for both models. Codellama 34b Instruct has 14 scored results on Noometry and Mercury 2 has 17.