Looking for an honest Anthropic Claude 3 Opus 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. In our overall scoring the Meta Llama 3.1 405B comes out ahead 44/100 to 62/100 — a 18-point gap. The widest gap is in camera quality, where the Meta Llama 3.1 405B pulls noticeably ahead.
Anthropic
Prices may vary · We may earn a commission on purchases. Learn more
Meta Llama 3.1 405B clearly outperforms the Anthropic Claude 3 Opus in the ai language models category, especially in value, scoring 62 vs 44. If you want the better overall ai language models, Meta Llama 3.1 405B is the recommended choice.
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.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | 3 Opus | 3.1 405B |
|---|---|---|
| Input (Prompt) | $15.00/1M | ✓Free/1M |
| Output (Completion) | $75.00/1M | ✓Free/1M |
| Open Source | Proprietary | ✓ Free |
Context Window (tokens)
| Metric | 3 Opus | 3.1 405B |
|---|---|---|
| Max Output | 4,096 tok | 4,096 tok |
| Speed | ✓35 tok/s | 30 tok/s |
| Time to First Token | ✓1.2s | 1.5s |
| Languages | ✓50+ | 8+ |
Higher is better. Industry-standard AI evaluation benchmarks.
3 Opus
3.1 405B
3 Opus
3.1 405B
3 Opus
3.1 405B
3 Opus
3.1 405B
3 Opus
3.1 405B
| Feature | 3 Opus | 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 | 3 Opus | 3.1 405B |
|---|---|---|
| Provider | Anthropic | Meta |
| Parameters | — | 405B |
| Knowledge Cutoff | 2023-08 | 2023-12 |
| License | Commercial | Llama 3.1 Community |
| Best For | complex analysisresearchlong context | open sourceself hostingfine tuningenterprise privacy |
Buy Anthropic Claude 3 Opus if…
The Anthropic Claude 3 Opus 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…
Buy the Meta Llama 3.1 405B if you want the best camera quality in this comparison. It scores higher overall and is the recommended choice for most buyers.
Meta Llama 3.1 405B clearly outperforms the Anthropic Claude 3 Opus in the ai language models category, especially in value, scoring 62 vs 44. If you want the better overall ai language models, Meta Llama 3.1 405B is the recommended choice.
No, Meta Llama 3.1 405B scores higher (75 vs 75).
Check the latest prices using the buy links above.
The Anthropic Claude 3 Opus is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy the Meta Llama 3.1 405B if you want the best camera quality in this comparison. It scores higher overall and is the recommended choice for most buyers.
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.
Who do you think wins this matchup?