# Amazon Nova Lite vs Grok 4.5

> Grok 4.5 is the stronger model overall, scoring 55.0 to 31.9 on the Noometry Index. Amazon Nova Lite costs 29× less per token, which makes it the better buy when Grok 4.5's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/amazon-nova-lite-vs-grok-4-5
- Last updated: 2026-10-11
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Amazon Nova Lite scores higher in 0 categories and Grok 4.5 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.5 leads 56.1 to 19.3.
- Amazon Nova Lite is cheaper at $0.06 / $0.24 per million input/output tokens, against $2 / $6 for Grok 4.5.
- Grok 4.5 accepts more context: 500K tokens versus 300K.

## Snapshot

| | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| Provider | Amazon | xAI |
| Noometry Index | 31.9 | 55.0 |
| Rank | 265 | 25 |
| Context | 300K | 500K |
| Input $/M | $0.06 | $2 |
| Output $/M | $0.24 | $6 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Lite: 32.5 (#270)
- Grok 4.5: 52.2 (#35)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Coding | 1239 | 1474 |
| ALE-Bench | 236.25 | 1,309 |
| DeepSWE | — | 53.8% |
| FrontierCode | — | 42.4% |
| LMArena WebDev | — | 1553 |
| SciCode | — | 54.1% |
| WeirdML | — | 46.4% |
| LiveBench Coding | 27.5% | — |

## Agentic & Tool Use

- Amazon Nova Lite: —
- Grok 4.5: 44.4 (#17)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| APEX-Agents | — | 56.2% |
| τ²-bench Banking | — | 47.9% |
| PostTrainBench | — | 23.4% |
| GBAEval | — | 65.4% |
| GDP.pdf | — | 14% |
| LMArena Search | — | 1213 |
| Vending-Bench 2 | — | 3,887 |

## Reasoning

- Amazon Nova Lite: 19.3 (#260)
- Grok 4.5: 56.1 (#25)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Hard Prompts | 1220 | 1462 |
| ARC-AGI-2 | — | 52.6% |
| SimpleBench | — | 70% |
| Kagi LLM Benchmark | — | 83.5% |
| NYT Connections (extended) | — | 79.9% |
| ARC-AGI-1 | — | 87.2% |
| CritPt | — | 15.4% |
| Chess Puzzles | — | 36% |
| LiveBench Reasoning | 36.7% | — |
| DTBench | — | 96.5% |
| LiveBench Data Analysis | 37.2% | — |
| LMCA | — | 45.2% |
| Surface Evolver Bench | — | 74.4% |
| Epoch Capabilities Index | — | 153.92 |
| LiveBench | 36.4% | — |

## Math

- Amazon Nova Lite: 27.8 (#247)
- Grok 4.5: 60.9 (#35)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Math | 1227 | 1459 |
| FrontierMath (Tiers 1-3) | — | 57.2% |
| FrontierMath Tier 4 | — | 24.4% |
| OTIS Mock AIME 2024-2025 | — | 97.8% |
| ProofBench | — | 31% |
| Omni-MATH | 23.3% | — |
| LiveBench Math | 36.7% | — |

## Knowledge

- Amazon Nova Lite: 26.3 (#259)
- Grok 4.5: 62.3 (#24)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Expert | 1201 | 1466 |
| GPQA Diamond | — | 93.4% |
| Humanity's Last Exam | 3.6% | — |
| SimpleQA Verified | — | 48.3% |
| MMLU-Pro | 60% | — |
| Vectara Hallucination Rate | 6.1% | — |
| GPQA (HELM) | 39.7% | — |
| MMLU | 77% | — |

## Multimodal

- Amazon Nova Lite: 25.5 (#123)
- Grok 4.5: 37.6 (#72)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Vision | 990 | 1288 |
| Blueprint-Bench 2 | — | 27.3% |
| Furniture Assembly | — | 22.5% |
| LMArena Document | — | 1452 |

## Multilingual

- Amazon Nova Lite: 38.0 (#232)
- Grok 4.5: 54.4 (#42)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Non-English | 1208 | 1440 |
| LMArena Chinese | 1225 | 1496 |
| LMArena French | 1237 | 1456 |
| LMArena German | 1229 | 1446 |
| LMArena Japanese | 1153 | 1428 |
| LMArena Korean | 1153 | 1404 |
| LMArena Russian | 1216 | 1448 |
| LMArena Spanish | 1226 | 1450 |

## Instruction Following

- Amazon Nova Lite: 59.3 (#255)
- Grok 4.5: 76.0 (#48)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Instruction Following | 1205 | 1446 |
| LiveBench Instruction Following | 54.1% | — |
| IFEval | 77.6% | — |

## Long Context

- Amazon Nova Lite: 37.4 (#217)
- Grok 4.5: 44.8 (#56)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Longer Query | 1234 | 1463 |

## Writing & Preference

- Amazon Nova Lite: 42.1 (#237)
- Grok 4.5: 65.8 (#42)

| Benchmark | Amazon Nova Lite | Grok 4.5 |
|---|---|---|
| LMArena Text | 1229 | 1448 |
| LMArena Creative Writing | 1197 | 1442 |
| LMArena Multi-Turn | 1199 | 1456 |
| EQ-Bench Creative Writing | — | 1579 |
| WildBench | 75% | — |
| LiveBench Language | 25.9% | — |

## FAQ

### Is Amazon Nova Lite better than Grok 4.5?

Grok 4.5 is the stronger model overall, scoring 55.0 to 31.9 on the Noometry Index. Amazon Nova Lite costs 29× less per token, which makes it the better buy when Grok 4.5's lead doesn't matter for your workload.

### Which is cheaper, Amazon Nova Lite or Grok 4.5?

Amazon Nova Lite is cheaper. It lists at $0.06 per million input tokens and $0.24 per million output tokens; Grok 4.5 lists at $2 and $6.

### Is Amazon Nova Lite or Grok 4.5 better for coding?

Grok 4.5 scores higher on coding benchmarks: 52.2 versus 32.5 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.5 does, with 500K tokens against 300K.

### How many benchmarks do Amazon Nova Lite and Grok 4.5 share?

19 benchmarks have published results for both models. Amazon Nova Lite has 34 scored results on Noometry and Grok 4.5 has 52.