Model comparison
GPT-5.2 vs Phi-4
GPT-5.2 is the stronger model overall, scoring 54.1 to 31.2 on the Noometry Index. Phi-4 costs 55× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.
Last verified . 23 shared benchmarks.
MicrosoftSummary
- They share 23 benchmarks with published results for both. GPT-5.2 scores higher in 9 categories and Phi-4 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.2 leads 60.0 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 96.1% for GPT-5.2 and 13.8% for Phi-4.
- Phi-4 is cheaper at $0.07 / $0.14 per million input/output tokens, against $1.75 / $14 for GPT-5.2.
- GPT-5.2 accepts more context: 400K tokens versus 128K.
- Phi-4 has downloadable open weights; the other is API-only.
Side by side
| GPT-5.2 | Phi-4 | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 54.1 | 31.2 |
| Released | 2025-12-11 | 2024-12-11 |
| Weights | Proprietary | Open |
| Context window | 400K | 128K |
| Max output | 128K | 4K |
| Input $ / M tokens | $1.75 | $0.07 |
| Output $ / M tokens | $14 | $0.14 |
| Results tracked | 67 | 37 |
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Category by category
Coding GPT-5.2 leads
GPT-5.2: 51.6 (#37), Phi-4: 34.4 (#239)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Coding | 1447 | 1231 |
| SWE-bench Verified | 73.8% | — |
| SWE-bench Verified (bash only) | 72.8% | — |
| LMArena WebDev | 1416 | — |
| SWE-bench Multilingual | 66.7% | — |
| GSO | 27.4% | — |
| WeirdML | 72.2% | — |
| BigCodeBench Instruct | — | 45.5% |
| LiveBench Coding | — | 30.7% |
| BigCodeBench Complete | — | 55.4% |
| ALE-Bench | 1,294 | — |
| AlgoTune | 2.05 | — |
Agentic & Tool Use GPT-5.2 leads
GPT-5.2: 40.2 (#24), Phi-4: 22.8 (#128)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 55.9% | 28.8% |
| Terminal-Bench | 64.9% | — |
| GDPval | 49.7% | — |
| Remote Labor Index | 2.5% | — |
| τ²-bench Airline | 83% | — |
| τ²-bench Banking | 32.2% | — |
| τ²-bench Retail | 81.6% | — |
| τ²-bench Telecom | 89.7% | — |
| DeepResearch Bench | 41.1% | — |
| BALROG | — | 11.6% |
| LMArena Search | 1207 | — |
| METR Time Horizons | 75.3% | — |
| Vending-Bench 2 | 3,591 | — |
Reasoning GPT-5.2 leads
GPT-5.2: 50.2 (#35), Phi-4: 17.7 (#291)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| Chess Puzzles | 49% | 1% |
| LMArena Hard Prompts | 1445 | 1220 |
| Epoch Capabilities Index | 153.45 | 130.42 |
| ARC-AGI-2 | 52.9% | — |
| SimpleBench | 45.8% | — |
| Kagi LLM Benchmark | 73.3% | — |
| NYT Connections (extended) | 83.6% | — |
| ARC-AGI-1 | 86.2% | — |
| EnigmaEval | 10.4% | — |
| EBR-Bench | 23% | — |
| LiveBench Reasoning | — | 47.8% |
| Mystery Game Puzzles | 23% | — |
| DTBench | 90.9% | — |
| LiveBench Data Analysis | — | 45.2% |
| LMCA | 43.9% | — |
| ForecastBench | 60.1 | — |
| LiveBench | — | 41.6% |
Math GPT-5.2 leads
GPT-5.2: 60.0 (#38), Phi-4: 20.8 (#285)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 96.1% | 13.8% |
| LMArena Math | 1440 | 1246 |
| FrontierMath (Tiers 1-3) | 67.4% | — |
| FrontierMath Tier 4 | 31.7% | — |
| MathArena Final-Answer Competitions | 72% | — |
| ProofBench | 15% | — |
| LiveBench Math | — | 42% |
| MATH Level 5 | — | 64.9% |
| FrontierMath (Feb 2025 set) | 40.7% | — |
| FrontierMath Tier 4 (v1) | 18.8% | — |
Knowledge GPT-5.2 leads
GPT-5.2: 59.3 (#32), Phi-4: 32.6 (#209)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| GPQA Diamond | 91.4% | 56.1% |
| Vectara Hallucination Rate | 8.4% | 3.7% |
| LMArena Expert | 1445 | 1203 |
| Humanity's Last Exam | 27.8% | — |
| SimpleQA Verified | 37.1% | — |
| Confabulations | — | 29.4% |
| MMLU | — | 84.8% |
Multimodal Not comparable
GPT-5.2: 51.3 (#7), Phi-4: —
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Vision | 1268 | — |
| VPCT | 84% | — |
| Furniture Assembly | 38.3% | — |
| LMArena Document | 1405 | — |
Multilingual GPT-5.2 leads
GPT-5.2: 53.4 (#67), Phi-4: 37.2 (#237)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Non-English | 1425 | 1197 |
| LMArena Chinese | 1460 | 1212 |
| LMArena French | 1455 | 1224 |
| LMArena German | 1448 | 1222 |
| LMArena Japanese | 1420 | 1158 |
| LMArena Korean | 1392 | 1151 |
| LMArena Russian | 1440 | 1209 |
| LMArena Spanish | 1433 | 1234 |
Instruction Following GPT-5.2 leads
GPT-5.2: 74.7 (#89), Phi-4: 60.4 (#251)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Instruction Following | 1417 | 1201 |
| LiveBench Instruction Following | — | 58.4% |
Long Context GPT-5.2 leads
GPT-5.2: 44.0 (#78), Phi-4: 36.9 (#226)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Longer Query | 1428 | 1217 |
| CL-bench | 18.2% | — |
Writing & Preference GPT-5.2 leads
GPT-5.2: 66.8 (#32), Phi-4: 40.5 (#244)
| Benchmark | GPT-5.2 | Phi-4 |
|---|---|---|
| LMArena Text | 1439 | 1217 |
| LMArena Creative Writing | 1401 | 1182 |
| LMArena Multi-Turn | 1458 | 1206 |
| Short-Story Creative Writing | — | 62.6% |
| EQ-Bench Creative Writing | 1703 | — |
| LiveBench Language | — | 25.6% |
Frequently asked questions
Is GPT-5.2 better than Phi-4?
GPT-5.2 is the stronger model overall, scoring 54.1 to 31.2 on the Noometry Index. Phi-4 costs 55× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.
Which is cheaper, GPT-5.2 or Phi-4?
Phi-4 is cheaper. It lists at $0.07 per million input tokens and $0.14 per million output tokens; GPT-5.2 lists at $1.75 and $14.
Is GPT-5.2 or Phi-4 better for coding?
GPT-5.2 scores higher on coding benchmarks: 51.6 versus 34.4 in the Noometry coding category.
Which has the bigger context window?
GPT-5.2 does, with 400K tokens against 128K.
How many benchmarks do GPT-5.2 and Phi-4 share?
23 benchmarks have published results for both models. GPT-5.2 has 67 scored results on Noometry and Phi-4 has 37.