Model comparison
GPT-5 Pro vs Phi 3 Medium 4k Instruct
GPT-5 Pro is the stronger model overall, scoring 46.2 to 32.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
MicrosoftSummary
- The widest gap is in knowledge, where GPT-5 Pro leads 56.2 to 29.6.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5 Pro | Phi 3 Medium 4k Instruct | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 46.2 | 32.4 |
| Released | 2025-10-06 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 272K | — |
| Input $ / M tokens | $15 | — |
| Output $ / M tokens | $120 | — |
| Results tracked | 12 | 17 |
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Category by category
Coding GPT-5 Pro leads
GPT-5 Pro: 43.4 (#77), Phi 3 Medium 4k Instruct: 32.3 (#263)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| WeirdML | 60.4% | — |
| LMArena Coding | — | 1130 |
| AlgoTune | 1.31 | — |
Reasoning GPT-5 Pro leads
GPT-5 Pro: 39.2 (#52), Phi 3 Medium 4k Instruct: 20.8 (#214)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| ARC-AGI-2 | 18.3% | — |
| SimpleBench | 61.6% | — |
| Kagi LLM Benchmark | 76.8% | — |
| ARC-AGI-1 | 70.2% | — |
| EnigmaEval | 18.8% | — |
| LMArena Hard Prompts | — | 1127 |
| Epoch Capabilities Index | 150.26 | — |
Math GPT-5 Pro leads
GPT-5 Pro: 48.0 (#53), Phi 3 Medium 4k Instruct: 30.9 (#202)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| FrontierMath (Tiers 1-3) | 55.8% | — |
| FrontierMath Tier 4 | 19.5% | — |
| LMArena Math | — | 1173 |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge GPT-5 Pro leads
GPT-5 Pro: 56.2 (#39), Phi 3 Medium 4k Instruct: 29.6 (#226)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| Humanity's Last Exam | 31.6% | — |
| LMArena Expert | — | 1108 |
Multilingual Not comparable
GPT-5 Pro: —, Phi 3 Medium 4k Instruct: 30.8 (#258)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | — | 1094 |
| LMArena Chinese | — | 1108 |
| LMArena French | — | 1109 |
| LMArena German | — | 1101 |
| LMArena Japanese | — | 1042 |
| LMArena Korean | — | 954 |
| LMArena Russian | — | 1145 |
| LMArena Spanish | — | 1095 |
Instruction Following Not comparable
GPT-5 Pro: —, Phi 3 Medium 4k Instruct: 57.8 (#263)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | — | 1114 |
Long Context Not comparable
GPT-5 Pro: —, Phi 3 Medium 4k Instruct: 33.9 (#250)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | — | 1120 |
Writing & Preference Not comparable
GPT-5 Pro: —, Phi 3 Medium 4k Instruct: 34.3 (#267)
| Benchmark | GPT-5 Pro | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | — | 1138 |
| LMArena Creative Writing | — | 1106 |
| LMArena Multi-Turn | — | 1088 |
Frequently asked questions
Is GPT-5 Pro better than Phi 3 Medium 4k Instruct?
GPT-5 Pro is the stronger model overall, scoring 46.2 to 32.4 on the Noometry Index.
Is GPT-5 Pro or Phi 3 Medium 4k Instruct better for coding?
GPT-5 Pro scores higher on coding benchmarks: 43.4 versus 32.3 in the Noometry coding category.
How many benchmarks do GPT-5 Pro and Phi 3 Medium 4k Instruct share?
0 benchmarks have published results for both models. GPT-5 Pro has 12 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.