# H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim) vs Sieve 31B

As of Oct 15, 2026, H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim) leads Sieve 31B in 0 of 1 shared categories.

H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim): price per 1M tokens is unset in the catalog.

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

H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim): open weights.

Sieve 31B: open weights.

- Which to pick, Decision models: As of Oct 15, 2026, Sieve 31B leads H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim) in Decision models at #3 against #17.

As of Oct 15, 2026, H2O-Lightning-4B v1.1 (H2O.ai, Qwen3.5-4B fine-tune, stock vLLM + open shim) is ranked #17 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).