Llama 2
Meta AI (FAIR)Llama 2 was released July 18, 2023 in partnership with Microsoft. Available in 7B, 13B, and 70B parameter sizes with open commercial licensing (a first for Meta). The 70B model scored 68.9% on MMLU. Trained on 2T tokens with a 4K context window. Llama 2 Chat variants were fine-tuned for dialogue using RLHF.
Benchmarks1
| Benchmark | Score |
|---|---|
| MMLU | 68.9% |
Llama Family5
| Model | Tier | Released | Input $/MTok |
|---|---|---|---|
| Llama 4 Scout | 2025-04-05 | ||
| Llama 4 Maverick | 2025-04-05 | ||
| Llama 3.3 | 2024-12-06 | ||
| Llama 3.1 | 2024-07-23 | ||
| Llama 3 | 2024-04-18 |
Details
Model FamilyLlama
Generation2
Release Date2023-07-18
Context Window4,096 tokens
Sources1
Tags
llamametaopen-weight