Llama 3 70BvsOpenAI o3
Llama 3 70B is cheaper than OpenAI o3 at $0.59/M vs $10/M input tokens.
| Spec | Llama 3 70B | OpenAI o3 |
|---|---|---|
| Input price | $0.59/M tokens | $10/M tokens |
| Output price | $0.79/M tokens | $40/M tokens |
| Context window | 8K tokens | — |
| Parameters | 70B | Not disclosed |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Apr 2024 | Apr 2025 |
Our Verdict
OpenAI o3
Llama 3 70BRunner-up
Not enough votes to call it. On the specs, OpenAI o3 has the edge: bigger model tier, newer.
Llama 3 70B costs 51x less per token.
Too close to call
API pricing
Cost per 1M tokens
Llama 3 70B
Input
$0.59
17× cheaper
Output
$0.79
51× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Llama 3 70B is cheaper on both: 17× input, 51× output.
Where to run it
1 host
Llama 3 70B
No hosts listed on OpenRouter.
OpenAI o31 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
35%
OpenAI o3 uses 31.9x more headings
Llama 3 70B
OpenAI o3
52%Vocabulary70%
21wSentence Length14w
0.55Hedging0.27
3.4Bold0.6
3.5Lists2.8
0.00Emoji0.00
0.00Headings0.32
0.05Transitions0.10
Based on 27 + 19 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
More comparisons
Llama 3 70B vs Ox AlphaNew provider
Llama 3 70B vs Gemini 2.5 Pro Preview 06-05New provider
Llama 3 70B vs MiniMax M3New provider
Llama 3 70B vs Claude Opus 4New provider
Llama 3 70B vs DeepSeek V3.2 ExpNew provider
Llama 3 70B vs DeepSeek V3.2 SpecialeNew provider
Llama 3 70B vs DeepSeek V4 FlashNew provider
Llama 3 70B vs DeepSeek V4 Flash 0731New provider