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Flide launches open-source inference engine claiming up to 9.5x speedup for Jev decision models

A new open-source project called Flide was shown on Hacker News, offering fast inference infrastructure for Jev-style decision models via an exact state-forking technique. Its creators say it runs up to 9.5 times faster than existing engines vLLM and SGLang while preserving model-only answers, and version 0.1.10 adds support for several new decision models including Ainvest-Decision, Darwin-27B-RSI-Decision and KnowLine-31B-Gen1.5, the latter now able to read images.

vLLM 0.31 adds constrained decoding to fix tool-call schema errors

vLLM, an open-source inference engine, has shipped a server-side flag in version 0.31 that enables constrained decoding, a technique forcing model output to match a required schema. The post's authors say that serving Kimi K2.6 on vLLM 0.28 produced correctly formatted tool calls only 92% of the time, but enabling the new flag raised accuracy to 100% for newer Kimi and DeepSeek models.

BottleCap AI releases ThinkingCap for Google's Gemma-4-26B-A4B model

BottleCap AI has published a fifth ThinkingCap model, this time trained on Google's Gemma-4-26B-A4B-it, cutting the number of 'thinking' tokens the model uses by up to 69.1% and an average of 38.9% across twelve benchmarks. The company says accuracy drops by only 0.15 percentage points, and that looping behavior fell from 3.6% of responses to 0.8%. A PRO version is also offered, claiming up to 87.6% fewer thinking tokens (62% average) for enterprise customers.

Meta runs Google TPU inference in production via new PyTorch-native SGLang engine

Google and Meta jointly released a PyTorch-native version of the SGLang inference engine, called TorchTPU, letting Google's tensor processing units serve AI workloads without requiring a switch to Google's JAX framework. Meta's PyTorch-TPU lead Zongwei Zhou said the engine is already running in production at Meta, built with help from RadixArk, the startup founded by SGLang's creators. A matching PyTorch-native version of the vLLM inference engine was also released as open source.

AMD tests five speculative decoding methods for vLLM on Instinct MI300X and MI355X GPUs

AMD published results from experiments running speculative decoding in vLLM on its MI300X and MI355X Instinct GPUs using the ROCm software stack. The team compared five drafting approaches—native MTP, Gemma 4 MTP, EAGLE-3, DFlash, and DSpark—which differ in how draft tokens are generated and how they receive signals from the target model.

vLLM tool-parser bug let AI-generated text trigger code execution

Researchers documented that vLLM's XML-based tool parser for Qwen3 Coder (CVE-2025-9141) fed model-generated arguments directly into Python's eval() function, meaning a language model's own output tokens could execute arbitrary code on the machine running it. A Gemini-based review flagged the change as a critical risk before it was merged, but the lead vLLM maintainer force-merged it anyway.