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poolside/
Laguna-S-2.1-DFlash-INT4

Name: Laguna-S-2.1-DFlash-INT4
Availability: InStock

poolside/Laguna-S-2.1-INT4

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Use on OpenRouter · Use on Vercel AI Gateway · Release blog post

poolside/Laguna-S-2.1-DFlash-INT4

DFlash speculator for the INT4 target poolside/Laguna-S-2.1-INT4. The speculator is a 6-layer Laguna-style draft model (BF16); pair it with the INT4 base for lower-latency serving via speculative decoding.

Trained: e0630_rhiemann_baseline SFT, DFlash Stage-2, 15k steps. Recommended serving setting: num_speculative_tokens=7. DFlash upstream support is in progress (vLLM #46853, SGLang #29446, TRT-LLM #15666). Use poolside/Laguna-S-2.1-INT4 as the target model.

Benchmarks

Measured with TP=2, temperature=0, and num_speculative_tokens=15.

Throughput speedup

Concurrency	GSM8K	MATH-500	HumanEval	MBPP	MT-Bench
1	3.697x	3.216x	3.776x	2.704x	2.525x
4	2.815x	2.521x	2.995x	2.145x	1.980x
8	2.541x	2.247x	2.865x	1.970x	1.953x
16	2.426x	2.161x	2.629x	1.895x	1.935x

Acceptance length

Concurrency	GSM8K	MATH-500	HumanEval	MBPP	MT-Bench
1	6.273	5.363	6.416	4.532	4.217
4	6.111	5.336	6.416	4.498	4.154
8	6.133	5.356	6.777	4.565	4.383
16	6.145	5.393	6.314	4.507	4.636