Model comparison
Llama 2-13B vs Step 5 Preview
Step 5 Preview is the stronger model overall, scoring 47.9 to 29.6 on the Noometry Index.
Last verified . 13 shared benchmarks.
Meta
StepFunSummary
- They share 13 benchmarks with published results for both. Llama 2-13B scores higher in 0 categories and Step 5 Preview in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 5 Preview leads 62.8 to 29.8.
- Llama 2-13B has downloadable open weights; the other is API-only.
Side by side
| Llama 2-13B | Step 5 Preview | |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 29.6 | 47.9 |
| Released | 2023-07-18 | 2026-09-16 |
| Weights | Open | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 32 | 18 |
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Category by category
Coding Step 5 Preview leads
Llama 2-13B: 30.9 (#291), Step 5 Preview: 51.8 (#36)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Coding | 1062 | 1480 |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
Reasoning Step 5 Preview leads
Llama 2-13B: 12.8 (#337), Step 5 Preview: 40.0 (#57)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Hard Prompts | 1051 | 1465 |
| CritPt | — | 20.9% |
| Chess Puzzles | 0% | — |
| DTBench | 42.2% | — |
| BIG-Bench Hard | 58.2% | — |
| Epoch Capabilities Index | 106.17 | — |
| HellaSwag | 80.7% | — |
| LAMBADA | 76.5% | — |
| PIQA | 80.8% | — |
| WinoGrande | 72.8% | — |
Math Step 5 Preview leads
Llama 2-13B: 31.1 (#229), Step 5 Preview: 46.1 (#72)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Math | 1065 | 1470 |
| ProofBench | — | 42% |
| GSM8K | 36.9% | — |
Knowledge Step 5 Preview leads
Llama 2-13B: 28.1 (#249), Step 5 Preview: 41.2 (#112)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1030 | 1470 |
| ARC (AI2) Challenge | 60.3% | — |
| BoolQ | 82.4% | — |
| MMLU | 55.6% | — |
| OpenBookQA | 57% | — |
| TriviaQA | 79.6% | — |
Multimodal Not comparable
Llama 2-13B: —, Step 5 Preview: 41.0 (#41)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |
| ScienceQA | 55.8% | — |
Multilingual Step 5 Preview leads
Llama 2-13B: 26.5 (#279), Step 5 Preview: 53.8 (#54)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1024 | 1432 |
| LMArena Chinese | 1001 | 1519 |
| LMArena Russian | 1055 | 1436 |
| LMArena Spanish | 1087 | 1439 |
| LMArena French | 1044 | — |
| LMArena German | 1009 | — |
| LMArena Japanese | 894 | — |
| LMArena Korean | 953 | — |
Instruction Following Step 5 Preview leads
Llama 2-13B: 53.3 (#287), Step 5 Preview: 76.0 (#50)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1045 | 1444 |
Long Context Step 5 Preview leads
Llama 2-13B: 32.3 (#269), Step 5 Preview: 44.5 (#64)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1064 | 1455 |
Writing & Preference Step 5 Preview leads
Llama 2-13B: 29.8 (#289), Step 5 Preview: 62.8 (#71)
| Benchmark | Llama 2-13B | Step 5 Preview |
|---|---|---|
| LMArena Text | 1084 | 1442 |
| LMArena Creative Writing | 1047 | 1410 |
| LMArena Multi-Turn | 1050 | 1447 |
Frequently asked questions
Is Llama 2-13B better than Step 5 Preview?
Step 5 Preview is the stronger model overall, scoring 47.9 to 29.6 on the Noometry Index.
Is Llama 2-13B or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 51.8 versus 30.9 in the Noometry coding category.
How many benchmarks do Llama 2-13B and Step 5 Preview share?
13 benchmarks have published results for both models. Llama 2-13B has 32 scored results on Noometry and Step 5 Preview has 18.