generated: '2026-07-21'
method: searched
source: https://tinker-docs.thinkingmachines.ai/ (Data Model & Permissions guide, 2026-07-16)
note: >-
  Derived from Tinker's published Data Model & Permissions guide, which describes
  how Tinker organizes data and access. Physical/REST id-prefixes are not published,
  so relationships capture the documented hierarchy only.
entities:
- name: organization
  description: Top-level tenant; owns billing, members, and access policy.
- name: team
  description: A group of users within an organization.
- name: project
  description: A workspace grouping related training work.
- name: session
  description: A working context under a project; groups training runs and sampling.
- name: training_run
  description: An individual fine-tuning / training job (LoRA SFT, RL, distillation).
- name: checkpoint
  description: A saved model/weights state produced by a training run (tinker:// URI).
relationships:
- from: team
  to: organization
  type: belongs_to
- from: project
  to: organization
  type: belongs_to
- from: session
  to: project
  type: belongs_to
- from: training_run
  to: session
  type: belongs_to
- from: checkpoint
  to: training_run
  type: belongs_to
- from: organization
  to: team
  type: has_many
- from: project
  to: session
  type: has_many
- from: session
  to: training_run
  type: has_many
- from: training_run
  to: checkpoint
  type: has_many