Verified claim · AI-ML · 100% confidence
ChatGPT Plus launched on: 2023-02-01.
Last verified 2026-05-16 · Methodology veritas-v0.1 · 461dd4dbccd9038d
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Structured fields
- Subject
- ChatGPT Plus
- Predicate
launched_on- Object
- 2023-02-01
- Confidence
- 100%
- Tags
- chatgpt-plus · openai · subscription · launch · 2023
Sources (1)
[1] official blog · OpenAI · 2023-02-01
Introducing ChatGPT Plus“We're launching a pilot subscription plan for ChatGPT, a conversational AI that can chat with you, answer follow-up questions, and challenge incorrect assumptions. The new subscription plan, ChatGPT Plus, will be available for $20/month.”
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ChatGPT Plus launched on: 2023-02-01. — SourceScore Claim 461dd4dbccd9038d (verified 2026-05-16). https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.jsonEmbed this claim
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<iframe src="https://sourcescore.org/embed/claim/461dd4dbccd9038d/" width="100%" height="360" frameborder="0" loading="lazy" title="ChatGPT Plus launched on: 2023-02-01."></iframe>Preview: open in new tab
Frequently asked questions
How has SourceScore reviewed the claim "ChatGPT Plus launched on: 2023-02-01."?
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 1 cited source record(s), excerpts, and live evidence below.
What is the evidence for "ChatGPT Plus launched on: 2023-02-01."?
The record lists 1 cited source(s): OpenAI. Each is shown below with a short excerpt and URL. The JSON record at https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.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.
How can I cite this SourceScore claim in my code or article?
Fetch the JSON record from https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.json, including the verbatim claim, cited evidence, confidence, methodology version, and last-verified date. Refetch the canonical HTTPS record and inspect cited evidence; the HMAC tag is not publicly independently verifiable. The CC-BY-4.0 license permits commercial use with attribution to SourceScore.
Use this claim in your code
Fetch this record from your application. The response includes verbatim excerpts, primary-source URLs, and SourceScore-issued HMAC integrity metadata. Refetch the canonical HTTPS record and inspect cited evidence; public users cannot independently verify the HMAC tag.
cURL
curl https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.jsonJavaScript / TypeScript
const r = await fetch("https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.json");
const envelope = await r.json();
console.log(envelope.claim.statement);
// "ChatGPT Plus launched on: 2023-02-01."Python
import httpx
r = httpx.get("https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.json")
envelope = r.json()
print(envelope["claim"]["statement"])
# "ChatGPT Plus launched on: 2023-02-01."LangChain (retrieve-then-cite)
from langchain_core.tools import tool
import httpx
@tool
def get_chatgpt_plus_fact() -> dict:
"""Fetch the verified SourceScore claim for ChatGPT Plus."""
r = httpx.get("https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.json")
return r.json()