Model comparison
Claude Haiku 4.5 vs Phi 3 Medium 4k Instruct
Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 33.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
MicrosoftSummary
- They share 17 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 7 categories and Phi 3 Medium 4k Instruct in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Haiku 4.5 leads 57.9 to 34.1.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 4.5 | Phi 3 Medium 4k Instruct | |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 39.5 | 33.0 |
| Released | 2025-10-15 | — |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 64K | — |
| Input $ / M tokens | $1 | — |
| Output $ / M tokens | $5 | — |
| Results tracked | 53 | 17 |
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Category by category
Coding Claude Haiku 4.5 leads
Claude Haiku 4.5: 44.0 (#78), Phi 3 Medium 4k Instruct: 32.9 (#268)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1453 | 1130 |
| SWE-bench Verified (bash only) | 66.6% | — |
| LMArena WebDev | 1330 | — |
| SWE-bench Multilingual | 64.7% | — |
| SciCode | 43.3% | — |
| WeirdML | 45.4% | — |
| ALE-Bench | 653.48 | — |
Agentic & Tool Use Not comparable
Claude Haiku 4.5: 33.6 (#52), Phi 3 Medium 4k Instruct: —
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| Terminal-Bench | 35.5% | — |
| Berkeley Function Calling Leaderboard | 68.7% | — |
| DeepResearch Bench | 45.5% | — |
| BALROG | 31.2% | — |
| ExploitBench | 13.7% | — |
| Vending-Bench 2 | 458.89 | — |
Reasoning Phi 3 Medium 4k Instruct leads
Claude Haiku 4.5: 15.1 (#320), Phi 3 Medium 4k Instruct: 21.7 (#214)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1127 |
| ARC-AGI-2 | 4% | — |
| NYT Connections (extended) | 14.3% | — |
| ARC-AGI-1 | 47.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | 8% | — |
| DTBench | 73.6% | — |
| LMCA | 30.9% | — |
| Epoch Capabilities Index | 142.41 | — |
| ForecastBench | 61.4 | — |
Math Claude Haiku 4.5 leads
Claude Haiku 4.5: 44.9 (#78), Phi 3 Medium 4k Instruct: 33.4 (#202)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1396 | 1173 |
| OTIS Mock AIME 2024-2025 | 66.7% | — |
| Omni-MATH | 56.1% | — |
| MATH Level 5 | 96.4% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Claude Haiku 4.5 leads
Claude Haiku 4.5: 37.7 (#153), Phi 3 Medium 4k Instruct: 30.2 (#229)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1442 | 1108 |
| GPQA Diamond | 71.2% | — |
| SimpleQA Verified | 13.2% | — |
| MMLU-Pro | 77.7% | — |
| Vectara Hallucination Rate | 9.8% | — |
| GPQA (HELM) | 60.5% | — |
Multimodal Not comparable
Claude Haiku 4.5: 26.8 (#118), Phi 3 Medium 4k Instruct: —
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1420 | — |
Multilingual Claude Haiku 4.5 leads
Claude Haiku 4.5: 49.9 (#129), Phi 3 Medium 4k Instruct: 30.6 (#263)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1377 | 1094 |
| LMArena Chinese | 1417 | 1108 |
| LMArena French | 1408 | 1110 |
| LMArena German | 1375 | 1101 |
| LMArena Japanese | 1339 | 1042 |
| LMArena Korean | 1347 | 954 |
| LMArena Russian | 1381 | 1145 |
| LMArena Spanish | 1420 | 1095 |
Instruction Following Claude Haiku 4.5 leads
Claude Haiku 4.5: 71.4 (#149), Phi 3 Medium 4k Instruct: 57.6 (#268)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1414 | 1113 |
| IFEval | 80.1% | — |
Long Context Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.6 (#92), Phi 3 Medium 4k Instruct: 34.0 (#255)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1427 | 1120 |
Writing & Preference Claude Haiku 4.5 leads
Claude Haiku 4.5: 57.9 (#123), Phi 3 Medium 4k Instruct: 34.1 (#272)
| Benchmark | Claude Haiku 4.5 | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1396 | 1138 |
| LMArena Creative Writing | 1372 | 1107 |
| LMArena Multi-Turn | 1409 | 1088 |
| WildBench | 83.9% | — |
| EQ-Bench 4 | 1064 | — |
Frequently asked questions
Is Claude Haiku 4.5 better than Phi 3 Medium 4k Instruct?
Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 33.0 on the Noometry Index.
Is Claude Haiku 4.5 or Phi 3 Medium 4k Instruct better for coding?
Claude Haiku 4.5 scores higher on coding benchmarks: 44.0 versus 32.9 in the Noometry coding category.
How many benchmarks do Claude Haiku 4.5 and Phi 3 Medium 4k Instruct share?
17 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.