Modelindex is a curated registry of widely used AI foundation models. The goal is accuracy, traceability, and maintainability—not exhaustive coverage of every released model.
✅ A model is included only if it meets all of the following criteria:
- Published by a primary model developer organisation
- Officially documented by the provider
- Has a canonical model identifier (model code)
- Has clear lifecycle signals (active, deprecated, decommissioned)
- Has demonstrated production or broad industry usage
🏢 Currently included providers
- OpenAI
- Anthropic
- Meta
- Mistral AI
These providers are included because they publish official model families, maintain documentation, and provide lifecycle visibility.
🚫 Currently excluded
The following are intentionally not indexed at this time:
- Community fine-tunes
- Third-party forks and repackaged models
- Experimental research releases
- Unofficial mirrors
- Long-tail open-source publishers
- Models without canonical model codes
- Models without official documentation pages
📝 Notes
Inclusion is based on provider authority and lifecycle transparency, not model quality.
Exclusion does not imply a model is inferior—only that it falls outside the current scope of the registry.
The model inclusion scope may expand over time as providers mature their documentation and lifecycle practices.