# Darwin-27B-ZTC vs Sieve 27B

As of Oct 14, 2026, Darwin-27B-ZTC leads Sieve 27B in 1 of 1 shared categories: Decision models.

Darwin-27B-ZTC: price per 1M tokens is unset in the catalog.

Sieve 27B: price per 1M tokens is unset in the catalog.

Darwin-27B-ZTC: open weights.

Sieve 27B: open weights.

- Which to pick, Decision models: As of Oct 14, 2026, Darwin-27B-ZTC leads Sieve 27B in Decision models at #6 against #14.

As of Oct 14, 2026, Darwin-27B-ZTC is near state of the art, rank #6 in Decision models (since Oct 14, 2026; sources Decision Index Full; methodology v1.0).

As of Oct 14, 2026, Sieve 27B is ranked #14 in Decision models (since Oct 14, 2026; sources Decision Index Full; methodology v1.0).