SourceScore

Verified claim · AI-ML · 100% confidence

Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode.

Last verified 2026-05-16 · Methodology veritas-v0.1 · 57c9272a3e7cb435

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Structured fields

Subject
Claude 3.7 Sonnet
Predicate
publicly_released_on
Object
2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode
Confidence
100%
Tags
claude-3-7-sonnet · anthropic · hybrid-reasoning · frontier-model · released_on · 2025

Sources (2)

  1. [1] official blog · Anthropic · 2025-02-24

    Claude 3.7 Sonnet and Claude Code
    “Claude 3.7 Sonnet is our most intelligent model to date and the first hybrid reasoning model on the market.”
    Anthropic is rated by SourceScore — see its reliability →

  2. [2] docs · Anthropic · 2025-02-24

    Anthropic Models — claude-3-7-sonnet-20250219 listingAnthropic is rated by SourceScore — see its reliability →

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Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode. — SourceScore Claim 57c9272a3e7cb435 (verified 2026-05-16). https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json

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Frequently asked questions

How has SourceScore reviewed the claim "Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode."?

SourceScore records this assertion with 100% legacy editorial confidence as of 2026-05-16, under methodology veritas-v0.1. That metadata is not a truth guarantee. Inspect the 2 cited source record(s), excerpts, and live evidence below.

What is the evidence for "Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode."?

The record lists 2 cited source(s): Anthropic, Anthropic. Each is shown below with a short excerpt and URL. The JSON record at https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json includes SourceScore-issued HMAC integrity metadata, not a public verification proof.

When was this claim record last reviewed by SourceScore?

Last reviewed 2026-05-16 under methodology version veritas-v0.1. The dated JSON record includes SourceScore-issued HMAC metadata, which is not publicly recomputable. Refetch the record and inspect current evidence before relying on it.

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cURL

curl https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json

JavaScript / TypeScript

const r = await fetch("https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json"); const envelope = await r.json(); console.log(envelope.claim.statement); // "Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode."

Python

import httpx r = httpx.get("https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json") envelope = r.json() print(envelope["claim"]["statement"]) # "Claude 3.7 Sonnet publicly released on: 2025-02-24 by Anthropic — first hybrid-reasoning model with optional extended-thinking mode."

LangChain (retrieve-then-cite)

from langchain_core.tools import tool import httpx @tool def get_claude_3_7_sonnet_fact() -> dict: """Fetch the verified SourceScore claim for Claude 3.7 Sonnet.""" r = httpx.get("https://sourcescore.org/api/v1/claims/57c9272a3e7cb435.json") return r.json()
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