Model comparison
Llama-3.3-70B-Instruct vs Step 3.7 Flash
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 30.6 on the Noometry Index. Llama-3.3-70B-Instruct costs 2.7× less per token, which makes it the better buy when Step 3.7 Flash's lead doesn't matter for your workload.
Last verified . 2 shared benchmarks.
Meta
StepFunSummary
- They share 2 benchmarks with published results for both. Llama-3.3-70B-Instruct scores higher in 0 categories and Step 3.7 Flash in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.7 Flash leads 42.9 to 15.3.
- The biggest single-benchmark swing is SciCode: 26% for Llama-3.3-70B-Instruct and 40% for Step 3.7 Flash.
- Llama-3.3-70B-Instruct is cheaper at $0.10 / $0.32 per million input/output tokens, against $0.18 / $1.11 for Step 3.7 Flash.
- Step 3.7 Flash accepts more context: 256K tokens versus 128K.
Side by side
| Llama-3.3-70B-Instruct | Step 3.7 Flash | |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 30.6 | 37.3 |
| Released | 2024-12-06 | 2026-05-29 |
| Weights | Open | Open |
| Context window | 128K | 256K |
| Max output | 4K | 256K |
| Input $ / M tokens | $0.10 | $0.18 |
| Output $ / M tokens | $0.32 | $1.11 |
| Results tracked | 43 | 5 |
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Category by category
Coding Step 3.7 Flash leads
Llama-3.3-70B-Instruct: 31.0 (#290), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| SciCode | 26% | 40% |
| WeirdML | 14.4% | — |
| BigCodeBench Instruct | 46.9% | — |
| LiveBench Coding | 36.6% | — |
| LMArena Coding | 1268 | — |
| BigCodeBench Complete | 57.5% | — |
| ALE-Bench | — | 694.12 |
Agentic & Tool Use Not comparable
Llama-3.3-70B-Instruct: 25.8 (#105), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| Berkeley Function Calling Leaderboard | 31.9% | — |
| BALROG | 23% | — |
Reasoning Step 3.7 Flash leads
Llama-3.3-70B-Instruct: 14.1 (#327), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| CritPt | 0% | 2.3% |
| SimpleBench | 19.9% | — |
| NYT Connections (extended) | — | 39.7% |
| LiveBench Reasoning | 50.8% | — |
| LMArena Hard Prompts | 1257 | — |
| DTBench | 59.5% | — |
| LiveBench Data Analysis | 49.5% | — |
| LMCA | 17.5% | — |
| Epoch Capabilities Index | 127.33 | — |
| ForecastBench | 58.6 | — |
| LiveBench | 50.2% | — |
Math Step 3.7 Flash leads
Llama-3.3-70B-Instruct: 15.3 (#298), Step 3.7 Flash: 42.9 (#82)
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| OTIS Mock AIME 2024-2025 | 5.1% | — |
| LiveBench Math | 42.2% | — |
| LMArena Math | 1267 | — |
| MATH Level 5 | 41.6% | — |
Knowledge Not comparable
Llama-3.3-70B-Instruct: 30.6 (#226), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| GPQA Diamond | 47.4% | — |
| Confabulations | 22.8% | — |
| Vectara Hallucination Rate | 4.1% | — |
| LMArena Expert | 1225 | — |
| MMLU | 86.3% | — |
Multilingual Not comparable
Llama-3.3-70B-Instruct: 39.9 (#220), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1236 | — |
| LMArena Chinese | 1217 | — |
| LMArena French | 1281 | — |
| LMArena German | 1251 | — |
| LMArena Japanese | 1150 | — |
| LMArena Korean | 1143 | — |
| LMArena Russian | 1252 | — |
| LMArena Spanish | 1270 | — |
Instruction Following Not comparable
Llama-3.3-70B-Instruct: 71.1 (#157), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| LiveBench Instruction Following | 82.7% | — |
| LMArena Instruction Following | 1242 | — |
Long Context Not comparable
Llama-3.3-70B-Instruct: 26.4 (#295), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| Fiction.LiveBench | 33.3% | — |
| LMArena Longer Query | 1256 | — |
Writing & Preference Not comparable
Llama-3.3-70B-Instruct: 47.6 (#207), Step 3.7 Flash: —
| Benchmark | Llama-3.3-70B-Instruct | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1274 | — |
| LMArena Creative Writing | 1250 | — |
| LMArena Multi-Turn | 1280 | — |
| LiveBench Language | 39.2% | — |
Frequently asked questions
Is Llama-3.3-70B-Instruct better than Step 3.7 Flash?
Step 3.7 Flash is the stronger model overall, scoring 37.3 to 30.6 on the Noometry Index. Llama-3.3-70B-Instruct costs 2.7× less per token, which makes it the better buy when Step 3.7 Flash's lead doesn't matter for your workload.
Which is cheaper, Llama-3.3-70B-Instruct or Step 3.7 Flash?
Llama-3.3-70B-Instruct is cheaper. It lists at $0.10 per million input tokens and $0.32 per million output tokens; Step 3.7 Flash lists at $0.18 and $1.11.
Is Llama-3.3-70B-Instruct or Step 3.7 Flash better for coding?
Step 3.7 Flash scores higher on coding benchmarks: 40.0 versus 31.0 in the Noometry coding category.
Which has the bigger context window?
Step 3.7 Flash does, with 256K tokens against 128K.
How many benchmarks do Llama-3.3-70B-Instruct and Step 3.7 Flash share?
2 benchmarks have published results for both models. Llama-3.3-70B-Instruct has 43 scored results on Noometry and Step 3.7 Flash has 5.