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NInfer fork enables 1M context for Qwen-3.8 27B on dual 5090s

A fork of the NInfer C++20/CUDA inference engine has been developed to support a 1 million token context window for the Qwen-3.8 27B model. This enhanced version, running on dual 5090 GPUs, achieves significantly higher token-per-second rates for decoding compared to vLLM, particularly beyond the native context limits of the base model. While vLLM offers faster prefill times, the NInfer fork demonstrates improved memory efficiency and sustained decode performance at extreme context lengths. AI

IMPACT Enables significantly larger context windows for local LLM deployments, potentially improving performance on tasks requiring extensive context.

RANK_REASON This is a fork of an existing inference engine with added features for a specific model, rather than a novel model release or foundational research.

Read on r/LocalLLaMA →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

NInfer fork enables 1M context for Qwen-3.8 27B on dual 5090s

How we ranked this

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15 / 100
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Newsworthiness bucket
Tool
This is a fork of an existing inference engine with added features for a specific model, rather than a novel model release or foundational research.
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Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, infra
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High
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Breaking (< 6h)
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COVERAGE [1]

  1. r/LocalLLaMA TIER_1 English(EN) · /u/Littlepharaoh ·

    (NInfer Fork) I wanted to have a 1M context Qwen-3.8 27B, tp2, dual 5090s

    <table> <tr><td> <a href="https://www.reddit.com/r/LocalLLaMA/comments/1w1txyk/ninfer_fork_i_wanted_to_have_a_1m_context_qwen38/"> <img alt="(NInfer Fork) I wanted to have a 1M context Qwen-3.8 27B, tp2, dual 5090s" src="https://preview.redd.it/p7f6lqphvcmh1.png?width=140&amp;hei…