Looking for an honest Amazon Nova Pro vs Meta Llama 3.1 405B comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (61/100 vs 62/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in display, where the Amazon Nova Pro pulls noticeably ahead.
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Amazon Nova Pro and Meta Llama 3.1 405B are closely matched ai language models devices with nearly identical overall scores (61 vs 62). The best choice depends on which specific features matter most to you.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | Nova Pro | 3.1 405B |
|---|---|---|
| Input (Prompt) | $0.80/1M | ✓Free/1M |
| Output (Completion) | $3.20/1M | ✓Free/1M |
| Open Source | Proprietary | ✓ Free |
Context Window (tokens)
| Metric | Nova Pro | 3.1 405B |
|---|---|---|
| Max Output | ✓5,120 tok | 4,096 tok |
| Speed | ✓150 tok/s | 30 tok/s |
| Time to First Token | ✓500ms | 1.5s |
| Languages | ✓20+ | 8+ |
Higher is better. Industry-standard AI evaluation benchmarks.
Nova Pro
3.1 405B
Nova Pro
3.1 405B
Nova Pro
3.1 405B
Nova Pro
3.1 405B
Nova Pro
3.1 405B
| Feature | Nova Pro | 3.1 405B |
|---|---|---|
| Reasoning / Chain-of-Thought | ✕ | ✕ |
| Vision (Image Input) | ✓ | ✕ |
| Audio Input | ✕ | ✕ |
| Video Input | ✓ | ✕ |
| Image/Audio Output | ✕ | ✕ |
| Function Calling / Tools | ✓ | ✓ |
| JSON Mode | ✓ | ✓ |
| Real-time Web Access | ✕ | ✕ |
| Fine-tuning Support | ✕ | ✓ |
| Batch API | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| Open Source | ✕ | ✓ |
| Field | Nova Pro | 3.1 405B |
|---|---|---|
| Provider | Amazon | Meta |
| Parameters | — | 405B |
| Knowledge Cutoff | 2024-03 | 2023-12 |
| License | Commercial | Llama 3.1 Community |
| Best For | AWS ecosystemmultimodalenterprisedocument analysis | open sourceself hostingfine tuningenterprise privacy |
Buy Amazon Nova Pro if…
The Amazon Nova Pro is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy Meta Llama 3.1 405B if…
The Meta Llama 3.1 405B is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Amazon Nova Pro and Meta Llama 3.1 405B are closely matched ai language models devices with nearly identical overall scores (61 vs 62). The best choice depends on which specific features matter most to you.
Both products score similarly — it depends on your priorities.
Check the latest prices using the buy links above.
The Amazon Nova Pro is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
The Meta Llama 3.1 405B is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.