Model comparison
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.
Last verified . 19 shared benchmarks.
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.
Side by side
| Amazon Nova Lite | Grok 4.5 | |
|---|---|---|
| Provider | Amazon | xAI |
| Noometry Index | 31.9 | 55.0 |
| Released | 2024-12-03 | 2026-07-08 |
| Weights | Proprietary | Proprietary |
| Context window | 300K | 500K |
| Max output | 10K | 500K |
| Input $ / M tokens | $0.06 | $2 |
| Output $ / M tokens | $0.24 | $6 |
| Results tracked | 34 | 52 |
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Category by category
Coding Grok 4.5 leads
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 Not comparable
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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 Grok 4.5 leads
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% | — |
Frequently asked questions
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.