Model comparison
Llama 13b vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 41.7 to 23.9 on the Noometry Index.
Last verified . 8 shared benchmarks.
Meta
StepFunSummary
- They share 8 benchmarks with published results for both. Llama 13b scores higher in 0 categories and Step 3.5 Flash in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 3.5 Flash leads 59.0 to 13.9.
Side by side
| Llama 13b | Step 3.5 Flash | |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 23.9 | 41.7 |
| Released | 2023-02-24 | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 21 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Llama 13b: 20.9 (#332), Step 3.5 Flash: 41.7 (#106)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 683 | 1436 |
Reasoning Step 3.5 Flash leads
Llama 13b: 13.4 (#327), Step 3.5 Flash: 21.2 (#202)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 728 | 1411 |
| NYT Connections (extended) | — | 28.4% |
| BIG-Bench Hard | 37.9% | — |
| Epoch Capabilities Index | 100.09 | — |
| HellaSwag | 79.2% | — |
| LAMBADA | 75.2% | — |
| PIQA | 80.1% | — |
| WinoGrande | 73% | — |
Math Step 3.5 Flash leads
Llama 13b: 24.4 (#259), Step 3.5 Flash: 40.6 (#77)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 838 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| GSM8K | 20.6% | — |
Knowledge Not comparable
Llama 13b: —, Step 3.5 Flash: 39.0 (#127)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | — | 1422 |
| ARC (AI2) Challenge | 52.7% | — |
| BoolQ | 78.7% | — |
| MMLU | 47.7% | — |
| OpenBookQA | 56.4% | — |
| TriviaQA | 77.9% | — |
Multimodal Not comparable
Llama 13b: —, Step 3.5 Flash: —
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| ScienceQA | 43.3% | — |
Multilingual Step 3.5 Flash leads
Llama 13b: 16.8 (#292), Step 3.5 Flash: 50.7 (#115)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 819 | 1386 |
| LMArena Chinese | — | 1448 |
| LMArena French | — | 1421 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1353 |
| LMArena Korean | — | 1350 |
| LMArena Russian | — | 1385 |
| LMArena Spanish | — | 1419 |
Instruction Following Step 3.5 Flash leads
Llama 13b: 36.9 (#300), Step 3.5 Flash: 73.3 (#119)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 781 | 1385 |
Long Context Not comparable
Llama 13b: —, Step 3.5 Flash: 42.8 (#112)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | — | 1402 |
Writing & Preference Step 3.5 Flash leads
Llama 13b: 13.9 (#307), Step 3.5 Flash: 59.0 (#108)
| Benchmark | Llama 13b | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 834 | 1403 |
| LMArena Creative Writing | 794 | 1357 |
| LMArena Multi-Turn | 753 | 1405 |
Frequently asked questions
Is Llama 13b better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 41.7 to 23.9 on the Noometry Index.
Is Llama 13b or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 20.9 in the Noometry coding category.
How many benchmarks do Llama 13b and Step 3.5 Flash share?
8 benchmarks have published results for both models. Llama 13b has 21 scored results on Noometry and Step 3.5 Flash has 19.