Quick answer
To understand a model lineage, start with the lab page, narrow to the family page, then inspect individual model pages for source-backed details.
The changelog is the event stream; model pages are the fact sheets; lab and family pages are the timeline views.
Use three levels
High-volume lab timelines
| Lab | Tracked models | First tracked | Latest tracked |
|---|---|---|---|
| Alibaba (Qwen) | 25 | Aug 3, 2023 | Jul 27, 2026 |
| Google DeepMind | 24 | Oct 11, 2018 | Jul 21, 2026 |
| OpenAI | 23 | Nov 5, 2019 | Jul 9, 2026 |
| DeepSeek | 20 | Nov 2, 2023 | Jul 31, 2026 |
| Mistral AI | 18 | Sep 27, 2023 | Jul 6, 2026 |
| Anthropic | 17 | Mar 14, 2023 | Jul 24, 2026 |
| Moonshot AI | 16 | Oct 9, 2023 | Jul 16, 2026 |
| Z.ai (Zhipu AI) | 15 | Mar 14, 2023 | Jun 19, 2026 |
Model families worth tracing
A practical workflow
- Open the lab page to see the full company history.
- Jump into a family page when names repeat across releases.
- Use the changelog to see whether an item was announced, released, updated, deprecated, retired, or withdrawn.
- Open the model page and check the primary sources before citing dates, licenses, benchmarks, or context-window claims.
Frequently asked questions
What is the difference between a lab page and a family page?
A lab page shows everything one organization has shipped. A family page follows one lineage or naming series, even when there are multiple releases, variants, previews, or updates.
Why are announcements and releases separated?
A model can be announced before it is generally available, released as a preview, updated later, deprecated, retired, or withdrawn. Separating event types prevents timelines from overstating availability.
Which source should I trust first?
Prefer primary sources such as official posts, model cards, API docs, papers, and repository pages. Third-party reporting can add context, but the catalog tries to anchor release facts to primary sources when possible.
Where to go next
Start with the release calendar for monthly cadence, use the changelog for full event detail, scan the release radar for the last 30 days, or open any lab page from the catalog to trace a company history.