Model comparison
Claude Opus 5 vs Phi 3 Mini 4k Instruct
Claude Opus 5 is the stronger model overall, scoring 67.7 to 27.4 on the Noometry Index.
Last verified . 18 shared benchmarks.
MicrosoftSummary
- They share 18 benchmarks with published results for both. Claude Opus 5 scores higher in 8 categories and Phi 3 Mini 4k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 5 leads 77.1 to 13.6.
- The biggest single-benchmark swing is Chess Puzzles: 42% for Claude Opus 5 and 0% for Phi 3 Mini 4k Instruct.
- Phi 3 Mini 4k Instruct has downloadable open weights; the other is API-only.
Side by side
| Claude Opus 5 | Phi 3 Mini 4k Instruct | |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 67.7 | 27.4 |
| Released | 2026-07-24 | 2024-04-23 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $5 | — |
| Output $ / M tokens | $25 | — |
| Results tracked | 57 | 35 |
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Category by category
Coding Claude Opus 5 leads
Claude Opus 5: 67.0 (#5), Phi 3 Mini 4k Instruct: 26.1 (#319)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Coding | 1533 | 1093 |
| DeepSWE | 73.6% | — |
| FrontierCode | 53.4% | — |
| CursorBench | 46.6% | — |
| LMArena WebDev | 1694 | — |
| FrontierSWE | 52% | — |
| SciCode | 56.4% | — |
| WeirdML | 91.8% | — |
| LiveBench Coding | — | 15.5% |
| ALE-Bench | 2,165 | — |
| HumanEval+ | — | 59.1% |
| MBPP+ | — | 54.2% |
Agentic & Tool Use Not comparable
Claude Opus 5: 55.5 (#1), Phi 3 Mini 4k Instruct: —
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| APEX-Agents | 65.8% | — |
| OSWorld 2.0 | 31.4% | — |
| τ²-bench Banking | 48.7% | — |
| PostTrainBench | 35% | — |
| BALROG | 63.4% | — |
| GBAEval | 79.6% | — |
| GDP.pdf | 24% | — |
| Vending-Bench 2 | 11,182 | — |
Reasoning Claude Opus 5 leads
Claude Opus 5: 77.1 (#3), Phi 3 Mini 4k Instruct: 13.6 (#326)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| Chess Puzzles | 42% | 0% |
| LMArena Hard Prompts | 1525 | 1072 |
| ARC-AGI-2 | 90.4% | — |
| SimpleBench | 80.6% | — |
| NYT Connections (extended) | 94.3% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 29.1% | — |
| EBR-Bench | 45.7% | — |
| LiveBench Reasoning | — | 26.8% |
| Mystery Game Puzzles | 59% | — |
| DTBench | 97.9% | — |
| LiveBench Data Analysis | — | 34.7% |
| LMCA | 64.5% | — |
| Adversarial NLI | — | 52.8% |
| Bench to the Future 3 | 0.12 | — |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | 162.67 | — |
| HellaSwag | — | 76.7% |
| LiveBench | — | 22.4% |
| WinoGrande | — | 70.8% |
Math Claude Opus 5 leads
Claude Opus 5: 86.1 (#6), Phi 3 Mini 4k Instruct: 24.5 (#258)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Math | 1533 | 1111 |
| FrontierMath (Tiers 1-3) | 85.6% | — |
| FrontierMath Tier 4 | 73.2% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 99% | — |
| LiveBench Math | — | 15.7% |
Knowledge Claude Opus 5 leads
Claude Opus 5: 66.8 (#8), Phi 3 Mini 4k Instruct: 27.9 (#241)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Expert | 1558 | 1045 |
| GPQA Diamond | 93.9% | — |
| SimpleQA Verified | 59.9% | — |
| ARC (AI2) Challenge | — | 84.9% |
| MMLU | — | 68.8% |
| OpenBookQA | — | 88% |
| TriviaQA | — | 64% |
Multimodal Not comparable
Claude Opus 5: 51.1 (#6), Phi 3 Mini 4k Instruct: —
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Vision | 1321 | — |
| Blueprint-Bench 2 | 30.4% | — |
| Furniture Assembly | 60.8% | — |
| LMArena Document | 1516 | — |
Multilingual Claude Opus 5 leads
Claude Opus 5: 58.8 (#3), Phi 3 Mini 4k Instruct: 26.5 (#275)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Non-English | 1500 | 1021 |
| LMArena Chinese | 1575 | 1021 |
| LMArena French | 1522 | 1075 |
| LMArena German | 1522 | 1044 |
| LMArena Japanese | 1510 | 935 |
| LMArena Korean | 1526 | 905 |
| LMArena Russian | 1507 | 1022 |
| LMArena Spanish | 1519 | 1084 |
Instruction Following Claude Opus 5 leads
Claude Opus 5: 79.3 (#5), Phi 3 Mini 4k Instruct: 48.0 (#298)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1516 | 1053 |
| LiveBench Instruction Following | — | 39.1% |
Long Context Claude Opus 5 leads
Claude Opus 5: 46.5 (#20), Phi 3 Mini 4k Instruct: 31.7 (#271)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1516 | 1044 |
Writing & Preference Claude Opus 5 leads
Claude Opus 5: 79.3 (#2), Phi 3 Mini 4k Instruct: 27.7 (#295)
| Benchmark | Claude Opus 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Text | 1506 | 1073 |
| LMArena Creative Writing | 1491 | 1037 |
| LMArena Multi-Turn | 1496 | 1018 |
| EQ-Bench Creative Writing | 2133 | — |
| EQ-Bench 4 | 1385 | — |
| LiveBench Language | — | 9.2% |
Frequently asked questions
Is Claude Opus 5 better than Phi 3 Mini 4k Instruct?
Claude Opus 5 is the stronger model overall, scoring 67.7 to 27.4 on the Noometry Index.
Is Claude Opus 5 or Phi 3 Mini 4k Instruct better for coding?
Claude Opus 5 scores higher on coding benchmarks: 67.0 versus 26.1 in the Noometry coding category.
How many benchmarks do Claude Opus 5 and Phi 3 Mini 4k Instruct share?
18 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Phi 3 Mini 4k Instruct has 35.