Model comparison
Kimi K3 vs Phi 3 Medium 4k Instruct
Kimi K3 is the stronger model overall, scoring 59.5 to 33.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
MicrosoftSummary
- They share 17 benchmarks with published results for both. Kimi K3 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 Kimi K3 leads 76.6 to 34.1.
Side by side
| Kimi K3 | Phi 3 Medium 4k Instruct | |
|---|---|---|
| Provider | Moonshot AI | Microsoft |
| Noometry Index | 59.5 | 33.0 |
| Released | 2026-07-16 | — |
| Weights | Open | Open |
| Context window | 1.05M | — |
| Max output | 1.05M | — |
| Input $ / M tokens | $3 | — |
| Output $ / M tokens | $15 | — |
| Results tracked | 53 | 17 |
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Category by category
Coding Kimi K3 leads
Kimi K3: 61.0 (#10), Phi 3 Medium 4k Instruct: 32.9 (#268)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1508 | 1130 |
| DeepSWE | 68.5% | — |
| FrontierCode | 44.2% | — |
| LMArena WebDev | 1654 | — |
| FrontierSWE | 25.9% | — |
| SciCode | 59.5% | — |
| WeirdML | 82.6% | — |
| ALE-Bench | 1,524 | — |
Agentic & Tool Use Not comparable
Kimi K3: 41.8 (#20), Phi 3 Medium 4k Instruct: —
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| APEX-Agents | 50.6% | — |
| τ²-bench Banking | 37.1% | — |
| PostTrainBench | 32% | — |
| GBAEval | 48.3% | — |
| GDP.pdf | 19% | — |
| Vending-Bench 2 | 5,165 | — |
Reasoning Kimi K3 leads
Kimi K3: 63.0 (#17), Phi 3 Medium 4k Instruct: 21.7 (#214)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1496 | 1127 |
| ARC-AGI-2 | 60.4% | — |
| SimpleBench | 60.7% | — |
| NYT Connections (extended) | 93.6% | — |
| ARC-AGI-1 | 94.5% | — |
| CritPt | 23.4% | — |
| Chess Puzzles | 39% | — |
| Mystery Game Puzzles | 26% | — |
| DTBench | 91.2% | — |
| LMCA | 52.7% | — |
| Surface Evolver Bench | 95% | — |
| Epoch Capabilities Index | 157.45 | — |
| ForecastBench | 61.1 | — |
Math Kimi K3 leads
Kimi K3: 74.2 (#16), Phi 3 Medium 4k Instruct: 33.4 (#202)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1491 | 1173 |
| FrontierMath (Tiers 1-3) | 72.2% | — |
| FrontierMath Tier 4 | 39% | — |
| MathArena Final-Answer Competitions | 87.8% | — |
| OTIS Mock AIME 2024-2025 | 97.2% | — |
| ProofBench | 87% | — |
Knowledge Kimi K3 leads
Kimi K3: 63.2 (#21), Phi 3 Medium 4k Instruct: 30.2 (#229)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1521 | 1108 |
| GPQA Diamond | 93.1% | — |
| SimpleQA Verified | 50.6% | — |
Multimodal Not comparable
Kimi K3: 37.8 (#70), Phi 3 Medium 4k Instruct: —
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| Blueprint-Bench 2 | 29.5% | — |
| Furniture Assembly | 34.2% | — |
Multilingual Kimi K3 leads
Kimi K3: 56.3 (#21), Phi 3 Medium 4k Instruct: 30.6 (#263)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1466 | 1094 |
| LMArena Chinese | 1529 | 1108 |
| LMArena French | 1491 | 1110 |
| LMArena German | 1488 | 1101 |
| LMArena Japanese | 1487 | 1042 |
| LMArena Korean | 1458 | 954 |
| LMArena Russian | 1482 | 1145 |
| LMArena Spanish | 1472 | 1095 |
Instruction Following Kimi K3 leads
Kimi K3: 77.7 (#14), Phi 3 Medium 4k Instruct: 57.6 (#268)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1483 | 1113 |
Long Context Kimi K3 leads
Kimi K3: 45.8 (#29), Phi 3 Medium 4k Instruct: 34.0 (#255)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1494 | 1120 |
Writing & Preference Kimi K3 leads
Kimi K3: 76.6 (#4), Phi 3 Medium 4k Instruct: 34.1 (#272)
| Benchmark | Kimi K3 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1476 | 1138 |
| LMArena Creative Writing | 1454 | 1107 |
| LMArena Multi-Turn | 1488 | 1088 |
| EQ-Bench Creative Writing | 2082 | — |
| EQ-Bench 4 | 1339 | — |
Frequently asked questions
Is Kimi K3 better than Phi 3 Medium 4k Instruct?
Kimi K3 is the stronger model overall, scoring 59.5 to 33.0 on the Noometry Index.
Is Kimi K3 or Phi 3 Medium 4k Instruct better for coding?
Kimi K3 scores higher on coding benchmarks: 61.0 versus 32.9 in the Noometry coding category.
How many benchmarks do Kimi K3 and Phi 3 Medium 4k Instruct share?
17 benchmarks have published results for both models. Kimi K3 has 53 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.