Verified claim · AI-ML · 100% confidence
Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04.
Last verified 2026-05-16 · Methodology veritas-v0.1 · 99340a18716a44fb
Structured fields
- Subject
- Claude 3 family (Opus, Sonnet, Haiku)
- Predicate
released_on- Object
- 2024-03-04
- Confidence
- 100%
- Tags
- claude-3 · opus · sonnet · haiku · anthropic · release · 2024
Sources (1)
[1] official blog · Anthropic · 2024-03-04
Introducing the next generation of Claude“Today, we're announcing the Claude 3 model family, which sets new industry benchmarks across a wide range of cognitive tasks. The family includes three state-of-the-art models in ascending order of capability: Claude 3 Haiku, Claude 3 Sonnet, and Claude 3 Opus.”
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Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04. — SourceScore Claim 99340a18716a44fb (verified 2026-05-16). https://sourcescore.org/api/v1/claims/99340a18716a44fb.jsonEmbed this claim
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<iframe src="https://sourcescore.org/embed/claim/99340a18716a44fb/" width="100%" height="360" frameborder="0" loading="lazy" title="Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04."></iframe>Preview: open in new tab
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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/99340a18716a44fb.jsonJavaScript / TypeScript
const r = await fetch("https://sourcescore.org/api/v1/claims/99340a18716a44fb.json");
const envelope = await r.json();
console.log(envelope.claim.statement);
// "Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04."Python
import httpx
r = httpx.get("https://sourcescore.org/api/v1/claims/99340a18716a44fb.json")
envelope = r.json()
print(envelope["claim"]["statement"])
# "Claude 3 family (Opus, Sonnet, Haiku) released on: 2024-03-04."LangChain (retrieve-then-cite)
from langchain_core.tools import tool
import httpx
@tool
def get_claude_3_family_opus_sonnet_haiku_fact() -> dict:
"""Fetch the verified SourceScore claim for Claude 3 family (Opus, Sonnet, Haiku)."""
r = httpx.get("https://sourcescore.org/api/v1/claims/99340a18716a44fb.json")
return r.json()