GPT-4 Turbo vs 
Llama 3.1 405B
Llama 3.1 405B is cheaper than GPT-4 Turbo at $2.7/M vs $10/M input tokens.
Framer-Style Animation
Sections that transition like Framer. Timing is the whole grade.
Loading the build
Loading the build
Which answer wins?
Favorites
Movie
Album
Book
City
Game
GPT-4 TurboGPT-4 Turbo
Inception
Kind of Blue
To Kill a Mockingbird
Tokyo
The Legend of Zelda: Breath of the Wild
Llama 3.1 405BLlama 3.1 405B
No pick
No pick
No pick
No pick
Sgt Peppers Lonely Hearts Club Band
Cien años de soledad
No pick
No pick
Price and specs
| Spec | GPT-4 Turbo | Llama 3.1 405B |
|---|---|---|
| Input price | $10/M tokens | $2.7/M tokens |
| Output price | $30/M tokens | $3.1/M tokens |
| Context window | 128K tokens | 128K tokens |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Apr 2024 | Jul 2024 |
| At 10M a month | $100 | $27.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
GPT-4 Turbo1 host
Llama 3.1 405B
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 12 Oct 2026.
Common questions
What is the difference between GPT-4 Turbo and Llama 3.1 405B?
GPT-4 Turbo is developed by OpenAI while Llama 3.1 405B is developed by Meta AI. GPT-4 Turbo has a 128K token context window vs Llama 3.1 405B's 128K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.
Which is better, GPT-4 Turbo or Llama 3.1 405B?
It depends on your use case. GPT-4 Turbo and Llama 3.1 405B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.
How much does GPT-4 Turbo cost compared to Llama 3.1 405B?
GPT-4 Turbo costs $10/M input tokens and Llama 3.1 405B costs $2.7/M input tokens. Llama 3.1 405B is $7.30/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare GPT-4 Turbo and Llama 3.1 405B on Rival?
This page shows a side-by-side comparison of GPT-4 Turbo and Llama 3.1 405B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
More comparisons
Against the newest arrivals
- GPT-4 Turbo vs Step 5 PreviewLanded Oct 2026
- Llama 3.1 405B vs Claude Haiku 5.5Landed Oct 2026
- GPT-4 Turbo vs Ling 3.1 FlashLanded Oct 2026
- Llama 3.1 405B vs Mistral Large 4Landed Oct 2026
- GPT-4 Turbo vs GPT-6.1 SolLanded Sep 2026
- Llama 3.1 405B vs Claude Sonnet 5.5Landed Sep 2026
- GPT-4 Turbo vs Solar Mini 4Landed Sep 2026
- Llama 3.1 405B vs Qwen3.8 Max PrimeLanded Sep 2026
Same lab, same size, long tail
- GPT-4 Turbo vs GPT-4o (Omni)Version compare
- GPT-4 Turbo vs GPT-6 Luna ProSame lab
- Llama 3.1 405B vs Muse Glimmer 30BSame lab
- Llama 3.1 405B vs Muse Spark 1.3Same lab
- GPT-4 Turbo vs OpenAI Codex MiniSame lab
- GPT-4 Turbo vs Command A+New provider
- GPT-4 Turbo vs Cypher Alpha (free)New provider
- GPT-4 Turbo vs DeepSeek V3.1Same size
