Model comparison
Amazon Nova Micro vs Claude Haiku 4.5
Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 30.4 on the Noometry Index. Amazon Nova Micro costs 33× less per token, which makes it the better buy when Claude Haiku 4.5's lead doesn't matter for your workload.
Last verified . 24 shared benchmarks.
Summary
- They share 24 benchmarks with published results for both. Amazon Nova Micro scores higher in 1 category and Claude Haiku 4.5 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Haiku 4.5 leads 57.9 to 39.5.
- The biggest single-benchmark swing is Berkeley Function Calling Leaderboard: 22.3% for Amazon Nova Micro and 68.7% for Claude Haiku 4.5.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $1 / $5 for Claude Haiku 4.5.
- Claude Haiku 4.5 accepts more context: 200K tokens versus 128K.
Side by side
| Amazon Nova Micro | Claude Haiku 4.5 | |
|---|---|---|
| Provider | Amazon | Anthropic |
| Noometry Index | 30.4 | 39.5 |
| Released | 2024-12-03 | 2025-10-15 |
| Weights | Proprietary | Proprietary |
| Context window | 128K | 200K |
| Max output | 10K | 64K |
| Input $ / M tokens | $0.035 | $1 |
| Output $ / M tokens | $0.14 | $5 |
| Results tracked | 32 | 53 |
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Category by category
Coding Claude Haiku 4.5 leads
Amazon Nova Micro: 30.5 (#295), Claude Haiku 4.5: 44.0 (#78)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| LMArena Coding | 1218 | 1453 |
| SWE-bench Verified (bash only) | — | 66.6% |
| LMArena WebDev | — | 1330 |
| SWE-bench Multilingual | — | 64.7% |
| SciCode | — | 43.3% |
| WeirdML | — | 45.4% |
| LiveBench Coding | 20.2% | — |
| ALE-Bench | — | 653.48 |
Agentic & Tool Use Claude Haiku 4.5 leads
Amazon Nova Micro: 22.1 (#132), Claude Haiku 4.5: 33.6 (#52)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 22.3% | 68.7% |
| Terminal-Bench | — | 35.5% |
| DeepResearch Bench | — | 45.5% |
| BALROG | — | 31.2% |
| ExploitBench | — | 13.7% |
| Vending-Bench 2 | — | 458.89 |
Reasoning Amazon Nova Micro leads
Amazon Nova Micro: 17.4 (#294), Claude Haiku 4.5: 15.1 (#320)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| LMArena Hard Prompts | 1191 | 1420 |
| ARC-AGI-2 | — | 4% |
| NYT Connections (extended) | — | 14.3% |
| ARC-AGI-1 | — | 47.7% |
| CritPt | — | 0% |
| Chess Puzzles | — | 8% |
| LiveBench Reasoning | 25.1% | — |
| DTBench | — | 73.6% |
| LiveBench Data Analysis | 34% | — |
| LMCA | — | 30.9% |
| Epoch Capabilities Index | — | 142.41 |
| ForecastBench | — | 61.4 |
| LiveBench | 29.6% | — |
Math Claude Haiku 4.5 leads
Amazon Nova Micro: 26.9 (#254), Claude Haiku 4.5: 44.9 (#78)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| Omni-MATH | 21.4% | 56.1% |
| LMArena Math | 1206 | 1396 |
| OTIS Mock AIME 2024-2025 | — | 66.7% |
| LiveBench Math | 34.5% | — |
| MATH Level 5 | — | 96.4% |
| FrontierMath (Feb 2025 set) | — | 5.9% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Claude Haiku 4.5 leads
Amazon Nova Micro: 29.6 (#237), Claude Haiku 4.5: 37.7 (#153)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| MMLU-Pro | 51.1% | 77.7% |
| Vectara Hallucination Rate | 5.5% | 9.8% |
| GPQA (HELM) | 38.3% | 60.5% |
| LMArena Expert | 1184 | 1442 |
| GPQA Diamond | — | 71.2% |
| SimpleQA Verified | — | 13.2% |
| MMLU | 70.8% | — |
Multimodal Not comparable
Amazon Nova Micro: —, Claude Haiku 4.5: 26.8 (#118)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | — | 1420 |
Multilingual Claude Haiku 4.5 leads
Amazon Nova Micro: 36.5 (#239), Claude Haiku 4.5: 49.9 (#129)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| LMArena Non-English | 1186 | 1377 |
| LMArena Chinese | 1209 | 1417 |
| LMArena French | 1238 | 1408 |
| LMArena German | 1192 | 1375 |
| LMArena Japanese | 1154 | 1339 |
| LMArena Korean | 1150 | 1347 |
| LMArena Russian | 1185 | 1381 |
| LMArena Spanish | 1225 | 1420 |
Instruction Following Claude Haiku 4.5 leads
Amazon Nova Micro: 56.3 (#272), Claude Haiku 4.5: 71.4 (#149)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| IFEval | 76% | 80.1% |
| LMArena Instruction Following | 1174 | 1414 |
| LiveBench Instruction Following | 48% | — |
Long Context Claude Haiku 4.5 leads
Amazon Nova Micro: 36.5 (#229), Claude Haiku 4.5: 43.6 (#92)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| LMArena Longer Query | 1205 | 1427 |
Writing & Preference Claude Haiku 4.5 leads
Amazon Nova Micro: 39.5 (#247), Claude Haiku 4.5: 57.9 (#123)
| Benchmark | Amazon Nova Micro | Claude Haiku 4.5 |
|---|---|---|
| LMArena Text | 1208 | 1396 |
| LMArena Creative Writing | 1172 | 1372 |
| WildBench | 74.3% | 83.9% |
| LMArena Multi-Turn | 1178 | 1409 |
| EQ-Bench 4 | — | 1064 |
| LiveBench Language | 15.8% | — |
Frequently asked questions
Is Amazon Nova Micro better than Claude Haiku 4.5?
Claude Haiku 4.5 is the stronger model overall, scoring 39.5 to 30.4 on the Noometry Index. Amazon Nova Micro costs 33× less per token, which makes it the better buy when Claude Haiku 4.5's lead doesn't matter for your workload.
Which is cheaper, Amazon Nova Micro or Claude Haiku 4.5?
Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Claude Haiku 4.5 lists at $1 and $5.
Is Amazon Nova Micro or Claude Haiku 4.5 better for coding?
Claude Haiku 4.5 scores higher on coding benchmarks: 44.0 versus 30.5 in the Noometry coding category.
Which has the bigger context window?
Claude Haiku 4.5 does, with 200K tokens against 128K.
How many benchmarks do Amazon Nova Micro and Claude Haiku 4.5 share?
24 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Claude Haiku 4.5 has 53.