Llama 2
Meta AI · · 144 days after Llama 1
Verified
3 of 3 published values traced to a source2 primary sources, 2 archived
Why this status
Cited to the lab's own announcement and the official model card. Not verified because the context window could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from. Modalities recorded as text-to-text. The primary source states the model is text-only.
What these states mean · How records are judged · Has this record changed?
The first major open model with commercial licensing, defining open-source AI for a year.
Details
| Released | July 18, 2023stated in ai.meta.comLlama 2 was released on July 18, 2023.
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|---|---|
| Company | Meta AI |
| Family | Llama |
| Lineage | after Llama 1 · before Llama 3 |
| Era | The assistant boom |
| Type | Language model · LLM |
| Modalities | Text → Text |
| Capabilities | Not recorded |
| Weights | Open weights |
| Licence | Llama 2 Community License |
| Context window | 4K tokensstated in huggingface.coLlama 2 supports a context window of 4,096 tokens.
|
| Parameters | 70Bstated in huggingface.coLlama 2 has 70,000,000,000 parameters.
|
This release is also a major milestone in the history →
Current information, elsewhere
This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.
- Current price and providers OpenRouter ↗
- Current benchmark scores Artificial Analysis ↗
- Weights and model card Hugging Face ↗
Sources
Record status: verified · confidence 90/100 · 2 of 2 primary
Cited to the lab's own announcement and the official model card. Not verified because the context window could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from. Modalities recorded as text-to-text. The primary source states the model is text-only.
- ai.meta.com Official announcement archived
- huggingface.co Model card archived
Primary means published by the organisation that made the model. Verified records require at least one.
Llama family
- Llama 1 February 24, 2023
- Llama 2 July 18, 2023
- Llama 3 April 18, 2024
- Llama 3.1 July 23, 2024
- Llama 3.2 September 25, 2024
- Llama 4 Scout April 5, 2025
- Llama 4 Maverick April 5, 2025
- Llama 5 April 8, 2026
What changed from Llama 1
Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.
- Context window2K → 4K
- Parameters65B → 70B
- LicenceLLaMA Non-Commercial Research License → Llama 2 Community License
Compare Llama 2 with another model →
See Llama 2 on the interactive timeline →