Model comparison
GPT-5.6 Sol vs Phi-2
GPT-5.6 Sol has enough public results to be ranked (#7); Phi-2 does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
MicrosoftSummary
- They share 1 benchmark with published results for both.
- Phi-2 has downloadable open weights; the other is API-only.
Side by side
| GPT-5.6 Sol | Phi-2 | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 65.0 | — |
| Released | 2026-07-09 | 2023-12-12 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $4 | — |
| Output $ / M tokens | $20 | — |
| Results tracked | 65 | 11 |
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Category by category
Coding Not comparable
GPT-5.6 Sol: 65.1 (#7), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| DeepSWE | 72.7% | — |
| FrontierCode | 47.5% | — |
| CursorBench | 41.7% | — |
| LMArena WebDev | 1618 | — |
| FrontierSWE | 32.2% | — |
| SciCode | 57.1% | — |
| GSO | 76.5% | — |
| WeirdML | 89.4% | — |
| LMArena Coding | 1498 | — |
| MirrorCode | 20% | — |
| ALE-Bench | 2,177 | — |
| HumanEval+ | — | 45.1% |
| MBPP+ | — | 54.2% |
Agentic & Tool Use Not comparable
GPT-5.6 Sol: 50.3 (#7), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| APEX-Agents | 51.4% | — |
| OSWorld 2.0 | 27.3% | — |
| τ²-bench Banking | 46.9% | — |
| PostTrainBench | 36.2% | — |
| BALROG | 60% | — |
| GBAEval | 52.6% | — |
| GDP.pdf | 30.7% | — |
| LMArena Search | 1257 | — |
| Vending-Bench 2 | 9,619 | — |
Reasoning Not comparable
GPT-5.6 Sol: 74.8 (#8), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| Epoch Capabilities Index | 161.66 | 107.94 |
| ARC-AGI-2 | 92.5% | — |
| SimpleBench | 71.7% | — |
| Kagi LLM Benchmark | 67% | — |
| NYT Connections (extended) | 93.8% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 32.3% | — |
| Chess Puzzles | 64% | — |
| EnigmaEval | 37.1% | — |
| EBR-Bench | 44.8% | — |
| LMArena Hard Prompts | 1484 | — |
| Mystery Game Puzzles | 58% | — |
| DTBench | 96% | — |
| LMCA | 59.2% | — |
| Surface Evolver Bench | 93.1% | — |
| Adversarial NLI | — | 42.5% |
| Bench to the Future 3 | 0.14 | — |
| BIG-Bench Hard | — | 59.4% |
| HellaSwag | — | 53.6% |
| WinoGrande | — | 54.7% |
Math Not comparable
GPT-5.6 Sol: 85.6 (#9), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 89.1% | — |
| FrontierMath Tier 4 | 82.9% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 83% | — |
| LMArena Math | 1474 | — |
| FrontierMath Erdős | 0% | — |
Knowledge Not comparable
GPT-5.6 Sol: 64.3 (#18), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| GPQA Diamond | 93.5% | — |
| SimpleQA Verified | 69.7% | — |
| Vectara Hallucination Rate | 12.4% | — |
| LMArena Expert | 1516 | — |
| ARC (AI2) Challenge | — | 75.9% |
| MMLU | — | 58.4% |
| OpenBookQA | — | 73.6% |
| TriviaQA | — | 45.2% |
Multimodal Not comparable
GPT-5.6 Sol: 48.6 (#9), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| LMArena Vision | 1281 | — |
| Blueprint-Bench 2 | 33.6% | — |
| Furniture Assembly | 56.7% | — |
| LMArena Document | 1483 | — |
Multilingual Not comparable
GPT-5.6 Sol: 55.3 (#32), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| LMArena Non-English | 1452 | — |
| LMArena Chinese | 1527 | — |
| LMArena French | 1477 | — |
| LMArena German | 1476 | — |
| LMArena Japanese | 1471 | — |
| LMArena Korean | 1442 | — |
| LMArena Russian | 1468 | — |
| LMArena Spanish | 1441 | — |
Instruction Following Not comparable
GPT-5.6 Sol: 77.7 (#16), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| LMArena Instruction Following | 1482 | — |
Long Context Not comparable
GPT-5.6 Sol: 45.4 (#42), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| LMArena Longer Query | 1480 | — |
Writing & Preference Not comparable
GPT-5.6 Sol: 73.3 (#12), Phi-2: —
| Benchmark | GPT-5.6 Sol | Phi-2 |
|---|---|---|
| LMArena Text | 1457 | — |
| LMArena Creative Writing | 1448 | — |
| EQ-Bench Creative Writing | 1972 | — |
| EQ-Bench 4 | 1250 | — |
| LMArena Multi-Turn | 1460 | — |
Frequently asked questions
Is GPT-5.6 Sol better than Phi-2?
GPT-5.6 Sol has enough public results to be ranked (#7); Phi-2 does not yet, so treat this comparison as directional.
How many benchmarks do GPT-5.6 Sol and Phi-2 share?
1 benchmark has published results for both models. GPT-5.6 Sol has 65 scored results on Noometry and Phi-2 has 11.