Looking for an honest OpenAI GPT-4o 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-4o comes out ahead 67/100 to 62/100 — a 5-point gap. The widest gap is in display, where the OpenAI GPT-4o pulls noticeably ahead.
OpenAI
Prices may vary · We may earn a commission on purchases. Learn more
OpenAI GPT-4o narrowly beats the Meta Llama 3.1 405B in the ai language models category, especially in display quality, scoring 67 vs 62. If you want the better overall ai language models, OpenAI GPT-4o 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 | OpenAI GPT-4o | 3.1 405B |
|---|---|---|
| Input (Prompt) | $2.50/1M | ✓Free/1M |
| Output (Completion) | $10.00/1M | ✓Free/1M |
| Open Source | Proprietary | ✓ Free |
Context Window (tokens)
| Metric | OpenAI GPT-4o | 3.1 405B |
|---|---|---|
| Max Output | ✓16,384 tok | 4,096 tok |
| Speed | ✓120 tok/s | 30 tok/s |
| Time to First Token | ✓500ms | 1.5s |
| Languages | ✓50+ | 8+ |
Higher is better. Industry-standard AI evaluation benchmarks.
OpenAI GPT-4o
3.1 405B
OpenAI GPT-4o
3.1 405B
OpenAI GPT-4o
3.1 405B
OpenAI GPT-4o
3.1 405B
OpenAI GPT-4o
3.1 405B
| Feature | OpenAI GPT-4o | 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 | OpenAI GPT-4o | 3.1 405B |
|---|---|---|
| Provider | OpenAI | Meta |
| Parameters | — | 405B |
| Knowledge Cutoff | 2024-04 | 2023-12 |
| License | Commercial | Llama 3.1 Community |
| Best For | generalcodingvisionmultimodal | open sourceself hostingfine tuningenterprise privacy |
Buy OpenAI GPT-4o if…
Buy the OpenAI GPT-4o 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…
Choose the Meta Llama 3.1 405B if budget is your top priority — it offers competitive specs at a lower price point.
OpenAI GPT-4o narrowly beats the Meta Llama 3.1 405B in the ai language models category, especially in display quality, scoring 67 vs 62. If you want the better overall ai language models, OpenAI GPT-4o is the recommended choice.
Yes, OpenAI GPT-4o scores higher overall (75 vs 75).
Check the latest prices using the buy links above.
Buy the OpenAI GPT-4o if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Choose the Meta Llama 3.1 405B if budget is your top priority — it offers competitive specs at a lower price point.
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.