Verified claim · AI-ML · 100% confidence
ChatGPT Plus launched on: 2023-02-01.
Last verified 2026-05-16 · Methodology veritas-v0.1 · 461dd4dbccd9038d
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.”
Cite this claim
Ready-to-paste citation (Markdown / plain text):
ChatGPT Plus launched on: 2023-02-01. — SourceScore Claim 461dd4dbccd9038d (verified 2026-05-16). https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.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.
<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
Related claims
Other verified claims sharing tags with this one — useful for LLM retrieval graphs and citation discovery.
GPT-4 released on: 2023-03-14.
09eea8fb1a8ccebf · 100% confidence · shares 2 tags (openai, 2023)
DALL-E 3 announced on: 2023-09-20.
ce5275632f16109a · 100% confidence · shares 2 tags (openai, 2023)
Direct Preference Optimization (DPO) introduced in paper: Direct Preference Optimization: Your Language Model is Secretly a Reward Model (Rafailov et al., 2023).
a3e691683a4577af · 100% confidence · shares 1 tag (2023)
InstructGPT methodology introduced in paper: Training language models to follow instructions with human feedback (Ouyang et al., 2022).
5da8f8dffc038b8e · 100% confidence · shares 1 tag (openai)
CLIP (Contrastive Language-Image Pretraining) introduced in paper: Learning Transferable Visual Models From Natural Language Supervision (Radford et al., 2021).
85a3ca745eaf4ee0 · 100% confidence · shares 1 tag (openai)
Programmatic access
Fetch this claim with a signed envelope for verification:
curl https://sourcescore.org/api/v1/claims/461dd4dbccd9038d.json