Llama 3 8BvsLlama 3.3 70B
Meta AI vs Meta AI — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Llama 3 8B | Llama 3.3 70B |
|---|---|---|
| Provider | ||
| Arena Rank | — | #13 |
| Context Window | 8K | 128K |
| Input Pricing | Free (open)/1M tokens | Free (open)/1M tokens |
| Output Pricing | Free (open)/1M tokens | Free (open)/1M tokens |
| Parameters | 8B | 70B |
| Open Source | Yes | Yes |
| Best For | Edge deployment, fast inference, fine-tuning | Instruction following, coding, reasoning |
| Release Date | Apr 18, 2024 | Dec 6, 2024 |
Llama 3 8B
Llama 3 8B is Meta's compact model that delivered breakthrough performance for its size class, outperforming the much larger Llama 2 70B on many benchmarks despite being nearly 10x smaller. Its efficiency and strong instruction following made it the most popular starting point for fine-tuning custom models in the open-source community.
View Meta AI profile →Llama 3.3 70B
Llama 3.3 70B is Meta's latest iteration of the 70B parameter class, delivering performance that approaches the much larger Llama 3.1 405B model at a fraction of the computational cost. It features improved instruction following, stronger coding abilities, and better reasoning compared to Llama 3.1 70B. This model demonstrates how continued training and optimization can dramatically improve performance at the same parameter count, making frontier-level AI more accessible.
View Meta AI profile →Key Differences: Llama 3 8B vs Llama 3.3 70B
Llama 3.3 70B supports a larger context window (128K), allowing it to process longer documents in a single request.
Llama 3 8B has 8B parameters vs Llama 3.3 70B's 70B, which affects inference speed and capability.
When to use Llama 3 8B
- +Your use case involves edge deployment, fast inference, fine-tuning
When to use Llama 3.3 70B
- +You need to process long documents (128K context)
- +Your use case involves instruction following, coding, reasoning
The Verdict
Llama 3.3 70B wins our head-to-head comparison with 3 out of 5 category wins. It's the stronger choice for instruction following, coding, reasoning, though Llama 3 8B holds an edge in edge deployment, fast inference, fine-tuning.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages