Model comparison
Claude Sonnet 5 vs Llama 2-70B
Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 24.4 on the Noometry Index.
Last verified . 22 shared benchmarks.
MetaSummary
- They share 22 benchmarks with published results for both. Claude Sonnet 5 scores higher in 8 categories and Llama 2-70B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 8.1.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 94.7% for Claude Sonnet 5 and 0% for Llama 2-70B.
- Llama 2-70B has downloadable open weights; the other is API-only.
Side by side
| Claude Sonnet 5 | Llama 2-70B | |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 54.6 | 24.4 |
| Released | 2026-06-29 | 2023-07-18 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 51 | 35 |
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Category by category
Coding Claude Sonnet 5 leads
Claude Sonnet 5: 55.5 (#26), Llama 2-70B: 31.4 (#286)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Coding | 1483 | 1079 |
| DeepSWE | 53.8% | — |
| FrontierCode | 42.7% | — |
| CursorBench | 34.1% | — |
| LMArena WebDev | 1541 | — |
| SciCode | 54.3% | — |
| GSO | 37.3% | — |
| WeirdML | 68.8% | — |
| ALE-Bench | 1,463 | — |
Agentic & Tool Use Not comparable
Claude Sonnet 5: 42.8 (#18), Llama 2-70B: —
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| APEX-Agents | 54.5% | — |
| GBAEval | 65.3% | — |
| LMArena Search | 1194 | — |
| Vending-Bench 2 | 6,378 | — |
Reasoning Claude Sonnet 5 leads
Claude Sonnet 5: 49.1 (#39), Llama 2-70B: 14.4 (#325)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Hard Prompts | 1461 | 1073 |
| DTBench | 92.5% | 41.6% |
| Epoch Capabilities Index | 156.21 | 113.79 |
| ForecastBench | 61.1 | 51.4 |
| SimpleBench | 60.6% | — |
| NYT Connections (extended) | 75.1% | — |
| CritPt | 16.9% | — |
| Chess Puzzles | 35% | — |
| Mystery Game Puzzles | 35% | — |
| LMCA | 50% | — |
| Surface Evolver Bench | 60% | — |
| Bench to the Future 3 | 0.14 | — |
| BIG-Bench Hard | — | 64.9% |
| CommonsenseQA 2.0 | — | 50% |
| HellaSwag | — | 85.3% |
| LAMBADA | — | 78.9% |
| PIQA | — | 82.8% |
| WinoGrande | — | 80.2% |
Math Claude Sonnet 5 leads
Claude Sonnet 5: 66.2 (#27), Llama 2-70B: 8.1 (#326)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.7% | 0% |
| LMArena Math | 1467 | 1091 |
| FrontierMath (Tiers 1-3) | 65.6% | — |
| FrontierMath Tier 4 | 29.3% | — |
| ProofBench | 77% | — |
| MATH Level 5 | — | 3.3% |
| GSM8K | — | 69.6% |
Knowledge Claude Sonnet 5 leads
Claude Sonnet 5: 55.6 (#47), Llama 2-70B: 7.4 (#310)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| GPQA Diamond | 90.5% | 26.3% |
| LMArena Expert | 1490 | 1039 |
| SimpleQA Verified | 33.7% | — |
| ARC (AI2) Challenge | — | 78.3% |
| BoolQ | — | 88.6% |
| MMLU | — | 69.9% |
| OpenBookQA | — | 60.2% |
| TriviaQA | — | 87.6% |
Multimodal Not comparable
Claude Sonnet 5: 42.4 (#31), Llama 2-70B: —
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Vision | 1274 | — |
| Blueprint-Bench 2 | 24.9% | — |
| LMArena Document | 1466 | — |
Multilingual Claude Sonnet 5 leads
Claude Sonnet 5: 53.8 (#55), Llama 2-70B: 27.7 (#274)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Non-English | 1431 | 1045 |
| LMArena Chinese | 1477 | 995 |
| LMArena French | 1460 | 1090 |
| LMArena German | 1440 | 1041 |
| LMArena Japanese | 1422 | 927 |
| LMArena Korean | 1411 | 964 |
| LMArena Russian | 1451 | 1083 |
| LMArena Spanish | 1437 | 1143 |
Instruction Following Claude Sonnet 5 leads
Claude Sonnet 5: 76.3 (#41), Llama 2-70B: 54.9 (#278)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Instruction Following | 1452 | 1071 |
Long Context Claude Sonnet 5 leads
Claude Sonnet 5: 44.8 (#55), Llama 2-70B: 32.3 (#270)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Longer Query | 1463 | 1062 |
Writing & Preference Claude Sonnet 5 leads
Claude Sonnet 5: 69.2 (#25), Llama 2-70B: 32.3 (#279)
| Benchmark | Claude Sonnet 5 | Llama 2-70B |
|---|---|---|
| LMArena Text | 1442 | 1115 |
| LMArena Creative Writing | 1416 | 1075 |
| LMArena Multi-Turn | 1454 | 1088 |
| EQ-Bench Creative Writing | 1794 | — |
| EQ-Bench 4 | 1236 | — |
Frequently asked questions
Is Claude Sonnet 5 better than Llama 2-70B?
Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 24.4 on the Noometry Index.
Is Claude Sonnet 5 or Llama 2-70B better for coding?
Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 31.4 in the Noometry coding category.
How many benchmarks do Claude Sonnet 5 and Llama 2-70B share?
22 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Llama 2-70B has 35.