Model comparison
Llama 3.1-70B vs Qwen3 8B
Qwen3 8B is the stronger model overall, scoring 33.3 to 29.4 on the Noometry Index.
Last verified . 5 shared benchmarks.
Summary
- They share 5 benchmarks with published results for both. Llama 3.1-70B scores higher in 1 category and Qwen3 8B in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3 8B leads 33.3 to 12.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 3.6% for Llama 3.1-70B and 56.1% for Qwen3 8B.
- Qwen3 8B is cheaper at $0.18 / $0.70 per million input/output tokens, against $0.40 / $0.40 for Llama 3.1-70B.
- Qwen3 8B accepts more context: 131K tokens versus 128K.
Side by side
| Llama 3.1-70B | Qwen3 8B | |
|---|---|---|
| Provider | Meta | Alibaba (Qwen) |
| Noometry Index | 29.4 | 33.3 |
| Released | 2024-07-23 | 2025-04 |
| Weights | Open | Open |
| Context window | 128K | 131K |
| Max output | 4K | 8K |
| Input $ / M tokens | $0.40 | $0.18 |
| Output $ / M tokens | $0.40 | $0.70 |
| Results tracked | 35 | 11 |
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Category by category
Coding Qwen3 8B leads
Llama 3.1-70B: 29.8 (#292), Qwen3 8B: 33.4 (#245)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| SciCode | — | 22.6% |
| WeirdML | 9% | — |
| BigCodeBench Instruct | 46.1% | — |
| LMArena Coding | 1260 | — |
| BigCodeBench Complete | 54.8% | — |
Agentic & Tool Use Qwen3 8B leads
Llama 3.1-70B: 24.9 (#104), Qwen3 8B: 29.9 (#71)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
| TheAgentCompany | 6.9% | — |
| BALROG | 27.9% | — |
Reasoning Llama 3.1-70B leads
Llama 3.1-70B: 20.8 (#215), Qwen3 8B: 16.1 (#299)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| DTBench | 60% | 59.7% |
| LMCA | 14.8% | 8.8% |
| Epoch Capabilities Index | 125.91 | 136.17 |
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| LMArena Hard Prompts | 1241 | — |
Math Qwen3 8B leads
Llama 3.1-70B: 12.7 (#298), Qwen3 8B: 33.3 (#176)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.6% | 56.1% |
| Omni-MATH | 21% | — |
| LMArena Math | 1252 | — |
| MATH Level 5 | 36.7% | — |
Knowledge Qwen3 8B leads
Llama 3.1-70B: 24.1 (#264), Qwen3 8B: 36.1 (#164)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| GPQA Diamond | 44.2% | 56.8% |
| MMLU-Pro | 65.3% | — |
| Vectara Hallucination Rate | — | 4.8% |
| GPQA (HELM) | 42.6% | — |
| LMArena Expert | 1209 | — |
| MMLU | 80.1% | — |
Multilingual Not comparable
Llama 3.1-70B: 38.9 (#220), Qwen3 8B: —
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| LMArena Non-English | 1219 | — |
| LMArena Chinese | 1215 | — |
| LMArena French | 1260 | — |
| LMArena German | 1222 | — |
| LMArena Japanese | 1132 | — |
| LMArena Korean | 1140 | — |
| LMArena Russian | 1234 | — |
| LMArena Spanish | 1253 | — |
Instruction Following Not comparable
Llama 3.1-70B: 65.5 (#218), Qwen3 8B: —
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| IFEval | 82.1% | — |
| LMArena Instruction Following | 1231 | — |
Long Context Too close to call
Llama 3.1-70B: 37.6 (#208), Qwen3 8B: 37.8 (#205)
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1241 | — |
Writing & Preference Not comparable
Llama 3.1-70B: 35.6 (#262), Qwen3 8B: —
| Benchmark | Llama 3.1-70B | Qwen3 8B |
|---|---|---|
| LMArena Text | 1261 | — |
| LMArena Creative Writing | 1232 | — |
| EQ-Bench Creative Writing | 784 | — |
| WildBench | 75.8% | — |
| LMArena Multi-Turn | 1256 | — |
Frequently asked questions
Is Llama 3.1-70B better than Qwen3 8B?
Qwen3 8B is the stronger model overall, scoring 33.3 to 29.4 on the Noometry Index.
Which is cheaper, Llama 3.1-70B or Qwen3 8B?
Qwen3 8B is cheaper. It lists at $0.18 per million input tokens and $0.70 per million output tokens; Llama 3.1-70B lists at $0.40 and $0.40.
Is Llama 3.1-70B or Qwen3 8B better for coding?
Qwen3 8B scores higher on coding benchmarks: 33.4 versus 29.8 in the Noometry coding category.
Which has the bigger context window?
Qwen3 8B does, with 131K tokens against 128K.
How many benchmarks do Llama 3.1-70B and Qwen3 8B share?
5 benchmarks have published results for both models. Llama 3.1-70B has 35 scored results on Noometry and Qwen3 8B has 11.