Modular vs End to End
This is likely the central comparison page in the vault.
Why the debate is confusing
Different papers compare different things:
- interfaces,
- training objectives,
- runtime structure,
- interpretability,
- evaluation protocol.
Many disagreements are caused by mismatched definitions rather than real empirical conflict.
Working comparison
| Axis | Modular | Hybrid | End-to-end |
|---|---|---|---|
| Intermediate structure | Explicit | Partial | Minimal or latent |
| Interpretability | High | Medium | Low to medium |
| Joint optimization | Low | Medium | High |
| Debuggability | High | Medium | Low |
| Representation sharing | Low | Medium | High |
| Closed-loop promise | Often limited by interfaces | Potentially strong | Strong in principle, hard in practice |
Hypothesis to test
The field is likely moving toward hybrid systems rather than pure end-to-end collapse. Shared backbones and learned latent interfaces will keep absorbing more of the stack, but explicit structure will remain where safety, verification, and operational debugging require it.