Verified claim · AI-ML · 100% confidence
Llama 2 released on: 2023-07-18.
Last verified 2026-05-16 · Methodology veritas-v0.1 · 34dd74941bc7bd48
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Structured fields
- Subject
- Llama 2
- Predicate
released_on- Object
- 2023-07-18
- Confidence
- 100%
- Tags
- llama-2 · meta · release · 2023 · open-weights
Sources (2)
[1] official blog · Meta · 2023-07-18
Meta and Microsoft Introduce the Next Generation of Llama[2] preprint · Meta AI / arXiv · 2023-07-19
Llama 2: Open Foundation and Fine-Tuned Chat Models
Cite this claim
Ready-to-paste citation (Markdown / plain text):
Llama 2 released on: 2023-07-18. — SourceScore Claim 34dd74941bc7bd48 (verified 2026-05-16). https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.jsonEmbed this claim
Drop this iframe into any blog post, docs page, or knowledge base. The widget renders the signed claim + primary source + click-through to this canonical page. CC-BY 4.0; attribution included.
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Frequently asked questions
Is the claim "Llama 2 released on: 2023-07-18." verified?
Yes — SourceScore verified this claim with 100% confidence as of 2026-05-16. The verification uses 2 primary sources cross-referenced against the SourceScore methodology (version veritas-v0.1). Full source list + signed JSON envelope linked below.
What is the evidence for "Llama 2 released on: 2023-07-18."?
Evidence comes from 2 primary sources: Meta, Meta AI / arXiv. Each source is listed below with verbatim excerpts and URLs. The signed JSON envelope at https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.json includes an HMAC-SHA256 signature for audit verification.
When was this claim last verified by SourceScore?
Last verified 2026-05-16 under methodology version veritas-v0.1. The signed JSON envelope is dated and cryptographically signed for audit trail. Re-verification cadence depends on the claim type and source freshness.
How can I cite this SourceScore claim in my code or article?
Fetch the signed JSON envelope from https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.json which includes the verbatim claim, primary sources, confidence, methodology version, last-verified date, and HMAC-SHA256 signature for audit. The CC-BY-4.0 license permits commercial use with attribution to SourceScore.
Use this claim in your code
Fetch this signed envelope from your application. The response includes the verbatim excerpt, primary source URLs, and an HMAC-SHA256 signature you can verify locally for audit trails.
cURL
curl https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.jsonJavaScript / TypeScript
const r = await fetch("https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.json");
const envelope = await r.json();
console.log(envelope.claim.statement);
// "Llama 2 released on: 2023-07-18."Python
import httpx
r = httpx.get("https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.json")
envelope = r.json()
print(envelope["claim"]["statement"])
# "Llama 2 released on: 2023-07-18."LangChain (retrieve-then-cite)
from langchain_core.tools import tool
import httpx
@tool
def get_llama_2_fact() -> dict:
"""Fetch the verified SourceScore claim for Llama 2."""
r = httpx.get("https://sourcescore.org/api/v1/claims/34dd74941bc7bd48.json")
return r.json()