Flide is an open-source inference engine for Jev-style decision models.
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It serves the Jev `/v1/systemone` API and uses exact state forking to read a shared state once and answer many questions on it in one pass, returning a probability for every option so agents and pipelines can make thresholded decisions.
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`pip install flide` and `flide serve --model ...` start an API server
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Jev `/v1/systemone` API with choice and yes/no questions and per-option probabilities
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Exact state forking so each answer matches the model asked alone
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Serves Qwen3.5 and Gemma 4 chat models plus OneJev, Open-Jev, pplx-decider, Clef and other decision models
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LoRA adapters and image inputs for supported families
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`flide verify` checks exact forking on your own model and requests
Open Source
Flide is free and open-source under the Apache-2.0 license and installs from PyPI. You run it on your own NVIDIA GPU; prebuilt kernels cover A10, A40, RTX 30, RTX 50, RTX PRO 6000, H100 and H200.
Best for
Teams running Jev-style decision models for agent routing, triage, classification or LLM-as-a-judge workloads who need high throughput on their own GPUs.
Not ideal for
Developers looking for a coding assistant, general chat or text generation serving, or anyone without an NVIDIA GPU.
A fast-moving, specialised serving engine for the Jev decision model ecosystem; its speed claims are vendor benchmarks and it is still pre-1.0.
Flide 0.1.12, released on November 10, 2026, added GLiDE, Nimble-v4-max and clef-flash models and precompiled kernels for RTX 50 series and RTX PRO 6000 GPUs; the project's Show HN on November 9 reached 124 points.
As of
Is Flide free?+
Yes - Flide is Open Source. Flide is free and open-source under the Apache-2.0 license and installs from PyPI. You run it on your own NVIDIA GPU; prebuilt kernels cover A10, A40, RTX 30, RTX 50, RTX PRO 6000, H100 and H200.
Is Flide open source?+
Yes - Flide is open source. Flide is free and open-source under the Apache-2.0 license and installs from PyPI. You run it on your own NVIDIA GPU; prebuilt kernels cover A10, A40, RTX 30, RTX 50, RTX PRO 6000, H100 and H200.
Who is Flide best for?+
Teams running Jev-style decision models for agent routing, triage, classification or LLM-as-a-judge workloads who need high throughput on their own GPUs.
Who is Flide not ideal for?+
Developers looking for a coding assistant, general chat or text generation serving, or anyone without an NVIDIA GPU.
What are the best Flide alternatives?+
The closest Flide alternatives on ai.dosa.dev are Copperhead, NVIDIA Personal AI Router (PAIR), WebLLM - all listed under Hardware & Edge AI.
Who makes Flide?+
Flide is developed by OmniJev. It is listed in the Hardware & Edge AI category on ai.dosa.dev.
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