Model comparison
Claude 2.1 vs Phi-4
Phi-4 is the stronger model overall, scoring 30.9 to 24.9 on the Noometry Index.
Last verified . 4 shared benchmarks.
MicrosoftSummary
- They share 4 benchmarks with published results for both. Claude 2.1 scores higher in 1 category and Phi-4 in 3 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Phi-4 leads 32.5 to 15.5.
- The biggest single-benchmark swing is GPQA Diamond: 33% for Claude 2.1 and 56.1% for Phi-4.
- Phi-4 has downloadable open weights; the other is API-only.
Side by side
| Claude 2.1 | Phi-4 | |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 24.9 | 30.9 |
| Released | 2023-11-21 | 2024-12-11 |
| Weights | Proprietary | Open |
| Context window | — | 128K |
| Max output | — | 4K |
| Input $ / M tokens | — | $0.07 |
| Output $ / M tokens | — | $0.14 |
| Results tracked | 7 | 37 |
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Category by category
Coding Phi-4 leads
Claude 2.1: 25.8 (#322), Phi-4: 33.8 (#237)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| WeirdML | 7.1% | — |
| BigCodeBench Instruct | — | 45.5% |
| LiveBench Coding | — | 30.7% |
| LMArena Coding | — | 1231 |
| BigCodeBench Complete | — | 55.4% |
Agentic & Tool Use Not comparable
Claude 2.1: —, Phi-4: 22.6 (#120)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 28.8% |
| BALROG | — | 11.6% |
Reasoning Claude 2.1 leads
Claude 2.1: 20.6 (#216), Phi-4: 17.0 (#287)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| Epoch Capabilities Index | 119.22 | 130.43 |
| Chess Puzzles | — | 1% |
| LiveBench Reasoning | — | 47.8% |
| LMArena Hard Prompts | — | 1220 |
| DTBench | 51% | — |
| LiveBench Data Analysis | — | 45.2% |
| ForecastBench | 54.2 | — |
| LiveBench | — | 41.6% |
Math Phi-4 leads
Claude 2.1: 9.6 (#309), Phi-4: 19.6 (#279)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 13.8% |
| LiveBench Math | — | 42% |
| LMArena Math | — | 1246 |
| MATH Level 5 | — | 64.9% |
Knowledge Phi-4 leads
Claude 2.1: 15.5 (#287), Phi-4: 32.5 (#204)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| GPQA Diamond | 33% | 56.1% |
| MMLU | 73.5% | 84.8% |
| Confabulations | — | 29.4% |
| Vectara Hallucination Rate | — | 3.7% |
| LMArena Expert | — | 1203 |
Multilingual Not comparable
Claude 2.1: —, Phi-4: 37.4 (#232)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| LMArena Non-English | — | 1197 |
| LMArena Chinese | — | 1211 |
| LMArena French | — | 1223 |
| LMArena German | — | 1222 |
| LMArena Japanese | — | 1158 |
| LMArena Korean | — | 1151 |
| LMArena Russian | — | 1209 |
| LMArena Spanish | — | 1234 |
Instruction Following Not comparable
Claude 2.1: —, Phi-4: 60.6 (#246)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| LiveBench Instruction Following | — | 58.4% |
| LMArena Instruction Following | — | 1201 |
Long Context Not comparable
Claude 2.1: —, Phi-4: 36.9 (#221)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| LMArena Longer Query | — | 1217 |
Writing & Preference Not comparable
Claude 2.1: —, Phi-4: 40.7 (#239)
| Benchmark | Claude 2.1 | Phi-4 |
|---|---|---|
| LMArena Text | — | 1217 |
| LMArena Creative Writing | — | 1182 |
| Short-Story Creative Writing | — | 62.6% |
| LMArena Multi-Turn | — | 1206 |
| LiveBench Language | — | 25.6% |
Frequently asked questions
Is Claude 2.1 better than Phi-4?
Phi-4 is the stronger model overall, scoring 30.9 to 24.9 on the Noometry Index.
Is Claude 2.1 or Phi-4 better for coding?
Phi-4 scores higher on coding benchmarks: 33.8 versus 25.8 in the Noometry coding category.
How many benchmarks do Claude 2.1 and Phi-4 share?
4 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Phi-4 has 37.