Model comparison
Claude Sonnet 4.5 vs Llama-3.3-70B-Instruct
Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 30.6 on the Noometry Index. Llama-3.3-70B-Instruct costs 39× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.
Last verified . 30 shared benchmarks.
Summary
- They share 30 benchmarks with published results for both. Claude Sonnet 4.5 scores higher in 9 categories and Llama-3.3-70B-Instruct in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Sonnet 4.5 leads 66.5 to 47.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 77.8% for Claude Sonnet 4.5 and 5.1% for Llama-3.3-70B-Instruct.
- Llama-3.3-70B-Instruct is cheaper at $0.10 / $0.32 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.5.
- Claude Sonnet 4.5 accepts more context: 200K tokens versus 128K.
- Llama-3.3-70B-Instruct has downloadable open weights; the other is API-only.
Side by side
| Claude Sonnet 4.5 | Llama-3.3-70B-Instruct | |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 44.1 | 30.6 |
| Released | 2025-09-29 | 2024-12-06 |
| Weights | Proprietary | Open |
| Context window | 200K | 128K |
| Max output | 64K | 4K |
| Input $ / M tokens | $3 | $0.10 |
| Output $ / M tokens | $15 | $0.32 |
| Results tracked | 73 | 43 |
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Category by category
Coding Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 47.3 (#61), Llama-3.3-70B-Instruct: 31.0 (#290)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| SciCode | 44.7% | 26% |
| WeirdML | 47.7% | 14.4% |
| LMArena Coding | 1489 | 1268 |
| SWE-bench Verified | 71.3% | — |
| SWE-bench Verified (bash only) | 71.4% | — |
| LMArena WebDev | 1393 | — |
| SWE-bench Multilingual | 67% | — |
| GSO | 14.7% | — |
| BigCodeBench Instruct | — | 46.9% |
| LiveBench Coding | — | 36.6% |
| BigCodeBench Complete | — | 57.5% |
| ALE-Bench | 796.15 | — |
| AlgoTune | 1.52 | — |
Agentic & Tool Use Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 38.3 (#32), Llama-3.3-70B-Instruct: 25.8 (#105)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| Berkeley Function Calling Leaderboard | 73.2% | 31.9% |
| Terminal-Bench | 46.5% | — |
| GDPval | 42.5% | — |
| Remote Labor Index | 2.1% | — |
| τ²-bench Airline | 72% | — |
| τ²-bench Banking | 25.3% | — |
| τ²-bench Retail | 72.4% | — |
| τ²-bench Telecom | 84.9% | — |
| Cybench | 60% | — |
| DeepResearch Bench | 52.6% | — |
| OSWorld | 62.9% | — |
| BALROG | — | 23% |
| LMArena Search | 1159 | — |
| METR Time Horizons | 67.4% | — |
| Vending-Bench 2 | 3,839 | — |
Reasoning Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 26.9 (#125), Llama-3.3-70B-Instruct: 14.1 (#327)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| SimpleBench | 54.3% | 19.9% |
| CritPt | 1.1% | 0% |
| LMArena Hard Prompts | 1462 | 1257 |
| DTBench | 83.2% | 59.5% |
| LMCA | 38.8% | 17.5% |
| Epoch Capabilities Index | 146.84 | 127.33 |
| ForecastBench | 61.9 | 58.6 |
| ARC-AGI-2 | 13.6% | — |
| Kagi LLM Benchmark | 57.9% | — |
| NYT Connections (extended) | 37.3% | — |
| ARC-AGI-1 | 63.7% | — |
| Chess Puzzles | 12% | — |
| EnigmaEval | 6% | — |
| EBR-Bench | 2.4% | — |
| LiveBench Reasoning | — | 50.8% |
| Mystery Game Puzzles | 17% | — |
| LiveBench Data Analysis | — | 49.5% |
| LiveBench | — | 50.2% |
Math Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 32.3 (#216), Llama-3.3-70B-Instruct: 15.3 (#298)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 77.8% | 5.1% |
| LMArena Math | 1449 | 1267 |
| MATH Level 5 | 97.7% | 41.6% |
| FrontierMath (Tiers 1-3) | 23.9% | — |
| FrontierMath Tier 4 | 2.4% | — |
| ProofBench | 19% | — |
| Omni-MATH | 55.3% | — |
| LiveBench Math | — | 42.2% |
| FrontierMath (Feb 2025 set) | 15.2% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 48.4 (#76), Llama-3.3-70B-Instruct: 30.6 (#226)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| GPQA Diamond | 82.3% | 47.4% |
| Vectara Hallucination Rate | 12% | 4.1% |
| LMArena Expert | 1482 | 1225 |
| Humanity's Last Exam | 13.7% | — |
| SimpleQA Verified | 30.7% | — |
| MMLU-Pro | 86.9% | — |
| Confabulations | — | 22.8% |
| GPQA (HELM) | 68.6% | — |
| MMLU | — | 86.3% |
Multimodal Not comparable
Claude Sonnet 4.5: 34.8 (#89), Llama-3.3-70B-Instruct: —
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| VPCT | 39.8% | — |
| LMArena Document | 1450 | — |
Multilingual Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 53.4 (#69), Llama-3.3-70B-Instruct: 39.9 (#220)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Non-English | 1425 | 1236 |
| LMArena Chinese | 1459 | 1217 |
| LMArena French | 1458 | 1281 |
| LMArena German | 1427 | 1251 |
| LMArena Japanese | 1390 | 1150 |
| LMArena Korean | 1403 | 1143 |
| LMArena Russian | 1437 | 1252 |
| LMArena Spanish | 1457 | 1270 |
Instruction Following Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 75.0 (#78), Llama-3.3-70B-Instruct: 71.1 (#157)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Instruction Following | 1459 | 1242 |
| LiveBench Instruction Following | — | 82.7% |
| IFEval | 85% | — |
Long Context Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 45.2 (#46), Llama-3.3-70B-Instruct: 26.4 (#295)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Longer Query | 1476 | 1256 |
| Fiction.LiveBench | — | 33.3% |
Writing & Preference Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 66.5 (#34), Llama-3.3-70B-Instruct: 47.6 (#207)
| Benchmark | Claude Sonnet 4.5 | Llama-3.3-70B-Instruct |
|---|---|---|
| LMArena Text | 1439 | 1274 |
| LMArena Creative Writing | 1442 | 1250 |
| LMArena Multi-Turn | 1465 | 1280 |
| EQ-Bench Creative Writing | 1678 | — |
| WildBench | 85.4% | — |
| LiveBench Language | — | 39.2% |
Frequently asked questions
Is Claude Sonnet 4.5 better than Llama-3.3-70B-Instruct?
Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 30.6 on the Noometry Index. Llama-3.3-70B-Instruct costs 39× less per token, which makes it the better buy when Claude Sonnet 4.5's lead doesn't matter for your workload.
Which is cheaper, Claude Sonnet 4.5 or Llama-3.3-70B-Instruct?
Llama-3.3-70B-Instruct is cheaper. It lists at $0.10 per million input tokens and $0.32 per million output tokens; Claude Sonnet 4.5 lists at $3 and $15.
Is Claude Sonnet 4.5 or Llama-3.3-70B-Instruct better for coding?
Claude Sonnet 4.5 scores higher on coding benchmarks: 47.3 versus 31.0 in the Noometry coding category.
Which has the bigger context window?
Claude Sonnet 4.5 does, with 200K tokens against 128K.
How many benchmarks do Claude Sonnet 4.5 and Llama-3.3-70B-Instruct share?
30 benchmarks have published results for both models. Claude Sonnet 4.5 has 73 scored results on Noometry and Llama-3.3-70B-Instruct has 43.