Methodology
Every fact on this site is a dated claim sourced from the provider itself, not from third-party reporting, and it expires if it is not re-checked.
Primary sources only
Every governance and pricing claim links to a page the provider itself publishes, such as its own pricing page, deprecation notice, or trust and security documentation. Third-party reporting, aggregator sites, and news coverage are never the source for a fact recorded here, even when they are faster to find.
Dated, and re-verified on a schedule
Every claim carries the date it was last checked against the provider's own page. Facts that change often are re-verified more frequently than facts that rarely do:
- Pricing snapshots are re-verified at least every 45 days.
- Lifecycle status and sunset dates are re-verified at least every 60 days.
- Governance facts (data retention, residency, compliance) are re-verified at least every 120 days.
- Availability across surfaces is re-verified at least every 120 days.
These limits are enforced by the build itself, not by editorial memory: a data validation script fails the build when any verification stamp is older than its limit, so a stale page cannot quietly stay live past its window.
What “Not published” means
Where a table or model card shows “Not published,” it means the provider does not publish that fact anywhere this directory can cite, not that the fact was not looked for. A blank field is never used in place of a checked answer; every field is either a sourced value or an explicit “Not published.”
No rankings
This property publishes no rankings, best-of lists, or scores. It records what each provider states about its own models and lets the reader compare. For ranked, opinionated buying guidance, see guptadeepak.com/tools.
The dataset
Every fact behind this site is also available as a single JSON file at guptadeepak.com/ai-models/api/models.json, licensed under CC BY 4.0. Attribute it to Deepak Gupta, guptadeepak.com.