Model comparison
GPT-5 Mini vs Phi 3 Medium 4k Instruct
GPT-5 Mini is the stronger model overall, scoring 41.7 to 32.4 on the Noometry Index.
Last verified . 17 shared benchmarks.
MicrosoftSummary
- They share 17 benchmarks with published results for both. GPT-5 Mini scores higher in 8 categories and Phi 3 Medium 4k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5 Mini leads 55.4 to 34.3.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5 Mini | Phi 3 Medium 4k Instruct | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 41.7 | 32.4 |
| Released | 2025-08-07 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $2 | — |
| Results tracked | 60 | 17 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding GPT-5 Mini leads
GPT-5 Mini: 40.0 (#134), Phi 3 Medium 4k Instruct: 32.3 (#263)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1406 | 1130 |
| SWE-bench Verified | 64.7% | — |
| SWE-bench Verified (bash only) | 59.8% | — |
| SWE-bench Multilingual | 39.7% | — |
| SciCode | 39.2% | — |
| WeirdML | 52.7% | — |
| ALE-Bench | 799.77 | — |
| AlgoTune | 1.38 | — |
Agentic & Tool Use Not comparable
GPT-5 Mini: 31.0 (#64), Phi 3 Medium 4k Instruct: —
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| Terminal-Bench | 34.8% | — |
| Berkeley Function Calling Leaderboard | 55.5% | — |
| Vending-Bench 2 | -31.18 | — |
Reasoning GPT-5 Mini leads
GPT-5 Mini: 24.1 (#153), Phi 3 Medium 4k Instruct: 20.8 (#214)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1380 | 1127 |
| ARC-AGI-2 | 4.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 54.3% | — |
| CritPt | 0% | — |
| Chess Puzzles | 30% | — |
| EnigmaEval | 8.2% | — |
| Mystery Game Puzzles | 10% | — |
| DTBench | 80.5% | — |
| LMCA | 34.2% | — |
| Epoch Capabilities Index | 145.51 | — |
| ForecastBench | 61 | — |
Math GPT-5 Mini leads
GPT-5 Mini: 46.3 (#59), Phi 3 Medium 4k Instruct: 30.9 (#202)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1377 | 1173 |
| FrontierMath (Tiers 1-3) | 46.7% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 86.7% | — |
| ProofBench | 9% | — |
| Omni-MATH | 72.2% | — |
| MATH Level 5 | 97.8% | — |
| FrontierMath (Feb 2025 set) | 27.2% | — |
| FrontierMath Tier 4 (v1) | 6.3% | — |
Knowledge GPT-5 Mini leads
GPT-5 Mini: 45.5 (#80), Phi 3 Medium 4k Instruct: 29.6 (#226)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1377 | 1108 |
| GPQA Diamond | 75% | — |
| Humanity's Last Exam | 19.4% | — |
| SimpleQA Verified | 21.6% | — |
| MMLU-Pro | 83.5% | — |
| Confabulations | 13.3% | — |
| Vectara Hallucination Rate | 12.9% | — |
| GPQA (HELM) | 75.6% | — |
Multimodal Not comparable
GPT-5 Mini: 35.0 (#80), Phi 3 Medium 4k Instruct: —
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Vision | 1202 | — |
| VPCT | 40.2% | — |
Multilingual GPT-5 Mini leads
GPT-5 Mini: 49.1 (#131), Phi 3 Medium 4k Instruct: 30.8 (#258)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1363 | 1094 |
| LMArena Chinese | 1387 | 1108 |
| LMArena French | 1385 | 1109 |
| LMArena German | 1366 | 1101 |
| LMArena Japanese | 1342 | 1042 |
| LMArena Korean | 1306 | 954 |
| LMArena Russian | 1362 | 1145 |
| LMArena Spanish | 1355 | 1095 |
Instruction Following GPT-5 Mini leads
GPT-5 Mini: 76.4 (#43), Phi 3 Medium 4k Instruct: 57.8 (#263)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1357 | 1114 |
| IFEval | 92.7% | — |
Long Context GPT-5 Mini leads
GPT-5 Mini: 41.9 (#127), Phi 3 Medium 4k Instruct: 33.9 (#250)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1355 | 1120 |
| Fiction.LiveBench | 69.4% | — |
Writing & Preference GPT-5 Mini leads
GPT-5 Mini: 55.4 (#143), Phi 3 Medium 4k Instruct: 34.3 (#267)
| Benchmark | GPT-5 Mini | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1373 | 1138 |
| LMArena Creative Writing | 1325 | 1106 |
| LMArena Multi-Turn | 1363 | 1088 |
| Short-Story Creative Writing | 83.1% | — |
| EQ-Bench Creative Writing | 1313 | — |
| WildBench | 85.5% | — |
Frequently asked questions
Is GPT-5 Mini better than Phi 3 Medium 4k Instruct?
GPT-5 Mini is the stronger model overall, scoring 41.7 to 32.4 on the Noometry Index.
Is GPT-5 Mini or Phi 3 Medium 4k Instruct better for coding?
GPT-5 Mini scores higher on coding benchmarks: 40.0 versus 32.3 in the Noometry coding category.
How many benchmarks do GPT-5 Mini and Phi 3 Medium 4k Instruct share?
17 benchmarks have published results for both models. GPT-5 Mini has 60 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.