# Cygnet (blockbrain, frozen Gemma-4-12B-it) vs Sieve 31B

As of Oct 15, 2026, Cygnet (blockbrain, frozen Gemma-4-12B-it) leads Sieve 31B in 0 of 1 shared categories.

Cygnet (blockbrain, frozen Gemma-4-12B-it): price per 1M tokens is unset in the catalog.

Sieve 31B: price per 1M tokens is unset in the catalog.

Cygnet (blockbrain, frozen Gemma-4-12B-it): open weights.

Sieve 31B: open weights.

- Which to pick, Decision models: As of Oct 15, 2026, Sieve 31B leads Cygnet (blockbrain, frozen Gemma-4-12B-it) in Decision models at #3 against #50.

As of Oct 15, 2026, Cygnet (blockbrain, frozen Gemma-4-12B-it) is ranked #50 in Decision models (since Oct 15, 2026; sources JevBench; methodology v1.0).

As of Oct 15, 2026, Sieve 31B is near state of the art, rank #3 in Decision models (since Oct 15, 2026; sources Decision Index Full; methodology v1.0).