2026-01-12 – Weekly AI News : Inference vs. Latency: What's the solution?

Last week, the forum buzzed with discussions on optimizing AI workflows and infrastructure. Members shared insights on handling inference latency and explored the implications of energy consumption per token in AI models. There was a spirited conversation about the practicality of using large language model (LLM) copilots in process mining. Additionally, the community debated the best strategies for choosing an AI stack when entering new markets.


This Week’s Hot Topics

Scaling inference without blowing up latency
The community is tackling the challenge of maintaining low latency while scaling AI models. This discussion is crucial as more real-time applications depend on efficient inference.
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Using LLM copilots with process mining
Exploring the role of LLMs as copilots in process mining could redefine efficiencies in data analysis. Members are weighing in on integrating these technologies effectively.
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Autoscaler tried to outsmart the LLM
In a fascinating twist, autoscalers are being tested against LLMs to optimize resource allocation dynamically. The thread provides real-world experimentation details.
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Measuring energy per token in practice
This discussion delves into the sustainability aspects of AI, focusing on the practicalities of measuring energy usage per token. It’s a must-read for those interested in eco-friendly AI.
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Picking an AI stack for new markets
Choosing the right AI stack is a critical decision when entering new markets. Forum members are sharing experiences and strategies for making informed choices.
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Canary rules for LLM endpoint rollouts
Implementing canary releases for LLM endpoints can mitigate risks during rollouts. This thread provides insights into best practices and real-world applications.
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Trying a 5-minute AI warm-up
A quick AI warm-up might be all you need to kickstart your day. Members are testing this concept and sharing their results—an interesting read for productivity enthusiasts.
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Looking forward to another productive week of discussions. Your contributions make the community stronger.

If you’re balancing latency with the ‘energy per token’ cost, a concrete win is turning on continuous batching (e.g., vLLM GitHub - vllm-project/vllm: A high-throughput and memory-efficient inference and serving engine for LLMs) plus speculative decoding with a small draft model to cut p95 without tanking quality. For process mining copilots, cap max_new_tokens and route short prompts to a distilled 4-bit model — otherwise it feels like waiting for coffee to drip. In our tests, paged KV cache helped less than speculative decoding on mixed-length traffic.

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But quick win I’ve had: cap max_tokens per endpoint and use tight stop sequences so your ‘energy per token’ and GPU time drop without touching the stack. For interactive process mining copilots, stream tokens immediately so perceived latency improves even if wall-clock doesn’t — caveat: watch truncation on long-tail queries. Anyone measuring latency to first token vs last token?

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Building on @marcus_t96, a lever that’s moved the needle for us is speculative decoding: run a small draft model to propose text and let the main model accept/reject; vLLM supports it (https://docs.vllm.ai/en/latest/serving/spec_decode.html). It cuts p50 latency without new hardware, but you’ll want to tune acceptance rate and fallback thresholds to avoid weirdness on tricky prompts. Anyone seeing solid gains with streaming turned on?

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And concrete win for us: prompt/prefix caching so shared system text and RAG headers don’t get re-decoded; with vLLM’s prompt caching (https://vllm.ai/docs/features/prompt-caching/) we cut p95 by about 25% on chat turns. Caveat: under spiky load you’ll want tight cache eviction and stable prompt templates, or the cache turns into a junk drawer. Anyone pairing this with KV compression or grouped-query attention to keep the footprint sane, @marcus_t96?

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