Looking for an honest OpenAI GPT-4.1 nano 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 OpenAI GPT-4.1 nano comes out ahead 69/100 to 62/100 — a 7-point gap. The widest gap is in display, where the OpenAI GPT-4.1 nano pulls noticeably ahead.
OpenAI
Prices may vary · We may earn a commission on purchases. Learn more
OpenAI GPT-4.1 nano narrowly beats the Meta Llama 3.1 405B in the ai language models category, especially in display quality, scoring 69 vs 62. If you want the better overall ai language models, OpenAI GPT-4.1 nano 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 | GPT-4.1 nano | 3.1 405B |
|---|---|---|
| Input (Prompt) | $0.10/1M | ✓Free/1M |
| Output (Completion) | $0.40/1M | ✓Free/1M |
| Open Source | Proprietary | ✓ Free |
Context Window (tokens)
| Metric | GPT-4.1 nano | 3.1 405B |
|---|---|---|
| Max Output | ✓32,768 tok | 4,096 tok |
| Speed | ✓350 tok/s | 30 tok/s |
| Time to First Token | ✓150ms | 1.5s |
| Languages | ✓50+ | 8+ |
Higher is better. Industry-standard AI evaluation benchmarks.
GPT-4.1 nano
3.1 405B
GPT-4.1 nano
3.1 405B
GPT-4.1 nano
3.1 405B
GPT-4.1 nano
3.1 405B
GPT-4.1 nano
3.1 405B
| Feature | GPT-4.1 nano | 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 | GPT-4.1 nano | 3.1 405B |
|---|---|---|
| Provider | OpenAI | Meta |
| Parameters | — | 405B |
| Knowledge Cutoff | 2025-01 | 2023-12 |
| License | Commercial | Llama 3.1 Community |
| Best For | ultra cheapclassificationroutingsimple tasks | open sourceself hostingfine tuningenterprise privacy |
Buy OpenAI GPT-4.1 nano if…
Buy the OpenAI GPT-4.1 nano if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
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.
OpenAI GPT-4.1 nano narrowly beats the Meta Llama 3.1 405B in the ai language models category, especially in display quality, scoring 69 vs 62. If you want the better overall ai language models, OpenAI GPT-4.1 nano is the recommended choice.
Yes, OpenAI GPT-4.1 nano scores higher overall (75 vs 75).
Check the latest prices using the buy links above.
Buy the OpenAI GPT-4.1 nano if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
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.