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
Knowledge
1 benchmarkPercentile among tested models:Top 25%50-75%25-50%Bottom 25%
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
Parameters70B
Context Window4K tokens
Open WeightYes
Modalitytext
Sources1
Tags
llamametaopen-weight