Tokenflood – simulate arbitrary loads on instruction-tuned LLMs
Hi everyone, I just released an open source load testing tool for LLMs: https://github.com/twerkmeister/tokenflood === What is it and what problems does it solve? === Tokenflood is a load testing tool for instruction-tuned LLMs hat can simulate arbitrary LLM loads in terms of prompt, prefix, and output lengths and requests per second. Instead of first collecting prompt data for different load types, you can configure the desired parameters for your load test and you are good to go. It also let's you assess the latency effects of potential prompt parameter changes before…
Tokenflood – simulate arbitrary loads on instruction-tuned LLMs launched on November 12, 2025 with 21 votes, #602 of 9,796 launches that month and more than 90% of that year's launches.
In plain words
Tokenflood is an open-source load testing tool designed for instruction-tuned large language models. It allows developers to simulate arbitrary loads by configuring prompt length, prefix length, output length, and requests per second without needing to collect real prompt data first. The tool helps teams building latency-sensitive LLM applications test self-hosted model setups and evaluate how changes to prompt parameters would affect performance before implementation.
written from the facts on this page · September 2026
From the sources
Tokenflood allows you to 1) figure out how to slash LLM latency by adjusting prompt parameters 2) assess the load curve of LLM providers before going to production with them
Tokenflood is a load testing framework for simulating arbitary loads on instruction-tuned LLMs - twerkmeister/tokenflood
In the maker’s words, at launch
Hi everyone, I just released an open source load testing tool for LLMs: https://github.com/twerkmeister/tokenflood === What is it and what problems does it solve? === Tokenflood is a load testing tool for instruction-tuned LLMs hat can simulate arbitrary LLM loads in terms of prompt, prefix, and…
Does a similar job
all alternatives →
Llmspeed – feel how fast a local LLM runs before you buy the hardware5d ago · llmspeed.dev · ▲329Pick hardware and a model, and feel the real speed of a local LLM before you buy. Simulates tokens/sec and time-to-first-token from verified benchmarks for GPUs, Macs, and more.
TensorZero2025 · github.com · ▲307Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation:…
ChainForge, a visual tool for prompt engineering and LLM evaluation2023 · chainforge.ai · ▲177Hi HN! We’re been working hard on this low-code tool for rapid prompt discovery, robustness testing and LLM evaluation. We’ve just released documentation to help new users learn how to use it and what it can already do. Let us know what you think! :)

SelfHostLLM2025 · selfhostllm.org · ▲134A simple calculator that estimates how many concurrent requests your GPU can handle for a given LLM, with shareable results.
Tiny-vLLM – high performance LLM inference engine in C++ and CUDAMay 2026 · github.com · ▲205Build your own high performance LLM inference engine in C++ and CUDA - a smaller version of vLLM - jmaczan/tiny-vllm
More ai this month
the category →



Paintings by AI models: programs run through a simulation of oil paint.
AI · 20d ago · stillwet.art
PixVerse R2▲381A real-time world model you can explore and change
AI · 29d ago · world.pixverse.video

Source: Show HN post ↗ · launch text quoted in part
Launched alongside, November 2025
the whole month →
Guideflow▲1,338Create interactive product demos and step-by-step guides in seconds with Guideflow, the leading AI-powered demo automation tool.
AI · Nov 2025 · guideflow.com

Hardware and software projects by Ali Roberts
Life & fun · Nov 2025 · bitsnpieces.dev
Welltory▲1,028Measure your wellness. Use data to feel great every day.
Work · Nov 2025 · welltory.com

TrustMRR▲833LLM Gateway is a b2b artificial intelligence based in United States, founded in 2025. $259,539/month in verified Stripe revenue. $78,764 MRR. Ahrefs Domain Rating 52/100. growing 55% month-over-month. Track LLM Gateway's verified metrics on TrustMRR.
Growth · Nov 2025 · trustmrr.com
Boing▲782Life & fun · Nov 2025 · boing.greg.technology