Model comparison
Claude Opus 4.5 vs Qwen3 14B
Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 35.0 on the Noometry Index. Qwen3 14B costs 16× less per token, which makes it the better buy when Claude Opus 4.5's lead doesn't matter for your workload.
Last verified . 9 shared benchmarks.
Alibaba (Qwen)Summary
- They share 9 benchmarks with published results for both. Claude Opus 4.5 scores higher in 6 categories and Qwen3 14B in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 4.5 leads 42.5 to 18.1.
- The biggest single-benchmark swing is Berkeley Function Calling Leaderboard: 77.5% for Claude Opus 4.5 and 41% for Qwen3 14B.
- Qwen3 14B is cheaper at $0.35 / $1.40 per million input/output tokens, against $5 / $25 for Claude Opus 4.5.
- Claude Opus 4.5 accepts more context: 200K tokens versus 131K.
- Qwen3 14B has downloadable open weights; the other is API-only.
Side by side
| Claude Opus 4.5 | Qwen3 14B | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 50.5 | 35.0 |
| Released | 2025-11-01 | 2025-04 |
| Weights | Proprietary | Open |
| Context window | 200K | 131K |
| Max output | 64K | 8K |
| Input $ / M tokens | $5 | $0.35 |
| Output $ / M tokens | $25 | $1.40 |
| Results tracked | 69 | 12 |
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Category by category
Coding Claude Opus 4.5 leads
Claude Opus 4.5: 55.4 (#21), Qwen3 14B: 36.7 (#191)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| SWE-bench Verified | 76.7% | — |
| SWE-bench Verified (bash only) | 76.8% | — |
| LMArena WebDev | 1493 | — |
| SWE-bench Multilingual | 70.7% | — |
| SciCode | — | 31.6% |
| GSO | 26.5% | — |
| WeirdML | 63.7% | — |
| LMArena Coding | 1504 | — |
| ALE-Bench | 1,025 | — |
| AlgoTune | 1.77 | — |
Agentic & Tool Use Claude Opus 4.5 leads
Claude Opus 4.5: 47.2 (#11), Qwen3 14B: 29.4 (#78)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| Berkeley Function Calling Leaderboard | 77.5% | 41% |
| Terminal-Bench | 63.1% | — |
| GDPval | 45.5% | — |
| Remote Labor Index | 3.8% | — |
| τ²-bench Airline | 84% | — |
| τ²-bench Banking | 24.7% | — |
| τ²-bench Retail | 79.6% | — |
| τ²-bench Telecom | 92.3% | — |
| Cybench | 82% | — |
| DeepResearch Bench | 54.8% | — |
| OSWorld | 66.3% | — |
| BALROG | 43.5% | — |
| LMArena Search | 1180 | — |
| METR Time Horizons | 75% | — |
| Vending-Bench 2 | 4,967 | — |
Reasoning Claude Opus 4.5 leads
Claude Opus 4.5: 42.5 (#43), Qwen3 14B: 18.1 (#272)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| Kagi LLM Benchmark | 80.2% | 49.1% |
| Chess Puzzles | 12% | 4% |
| DTBench | 89.9% | 64% |
| LMCA | 44.5% | 18.2% |
| Epoch Capabilities Index | 150.1 | 138.23 |
| ARC-AGI-2 | 37.6% | — |
| SimpleBench | 62% | — |
| NYT Connections (extended) | 52.5% | — |
| ARC-AGI-1 | 80% | — |
| CritPt | — | 0% |
| EnigmaEval | 11.9% | — |
| EBR-Bench | 14.3% | — |
| LMArena Hard Prompts | 1476 | — |
| Mystery Game Puzzles | 22% | — |
| ForecastBench | 60.7 | — |
Math Claude Opus 4.5 leads
Claude Opus 4.5: 38.5 (#85), Qwen3 14B: 37.0 (#102)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 86.1% | 66.4% |
| FrontierMath (Tiers 1-3) | 34.4% | — |
| FrontierMath Tier 4 | 4.9% | — |
| ProofBench | 36% | — |
| LMArena Math | 1463 | — |
| FrontierMath (Feb 2025 set) | 20.7% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Opus 4.5 leads
Claude Opus 4.5: 56.4 (#38), Qwen3 14B: 39.2 (#124)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| GPQA Diamond | 86% | 63.8% |
| Vectara Hallucination Rate | 10.9% | 5.4% |
| Humanity's Last Exam | 25.2% | — |
| SimpleQA Verified | 45.7% | — |
| LMArena Expert | 1488 | — |
Multimodal Not comparable
Claude Opus 4.5: 31.1 (#99), Qwen3 14B: —
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| GeoBench | 75% | — |
| VPCT | 40% | — |
| Furniture Assembly | 28.3% | — |
| LMArena Document | 1462 | — |
Multilingual Not comparable
Claude Opus 4.5: 54.5 (#45), Qwen3 14B: —
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| LMArena Non-English | 1438 | — |
| LMArena Chinese | 1470 | — |
| LMArena French | 1471 | — |
| LMArena German | 1449 | — |
| LMArena Japanese | 1415 | — |
| LMArena Korean | 1424 | — |
| LMArena Russian | 1448 | — |
| LMArena Spanish | 1455 | — |
Instruction Following Not comparable
Claude Opus 4.5: 77.7 (#20), Qwen3 14B: —
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| LMArena Instruction Following | 1478 | — |
Long Context Claude Opus 4.5 leads
Claude Opus 4.5: 46.4 (#21), Qwen3 14B: 38.0 (#201)
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| Fiction.LiveBench | — | 62.5% |
| CL-bench | 21.1% | — |
| LMArena Longer Query | 1480 | — |
Writing & Preference Not comparable
Claude Opus 4.5: 68.2 (#28), Qwen3 14B: —
| Benchmark | Claude Opus 4.5 | Qwen3 14B |
|---|---|---|
| LMArena Text | 1451 | — |
| LMArena Creative Writing | 1445 | — |
| EQ-Bench Creative Writing | 1687 | — |
| LMArena Multi-Turn | 1466 | — |
Frequently asked questions
Is Claude Opus 4.5 better than Qwen3 14B?
Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 35.0 on the Noometry Index. Qwen3 14B costs 16× less per token, which makes it the better buy when Claude Opus 4.5's lead doesn't matter for your workload.
Which is cheaper, Claude Opus 4.5 or Qwen3 14B?
Qwen3 14B is cheaper. It lists at $0.35 per million input tokens and $1.40 per million output tokens; Claude Opus 4.5 lists at $5 and $25.
Is Claude Opus 4.5 or Qwen3 14B better for coding?
Claude Opus 4.5 scores higher on coding benchmarks: 55.4 versus 36.7 in the Noometry coding category.
Which has the bigger context window?
Claude Opus 4.5 does, with 200K tokens against 131K.
How many benchmarks do Claude Opus 4.5 and Qwen3 14B share?
9 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and Qwen3 14B has 12.