Hacker News

Latest

Oxide Computer raises $445M (SEC Form D)

2026-08-04 @ 20:13:40Points: 106Comments: 31

In Memory of My Wife, Elise Cawley, with Thanks for 36 Wonderful Years

2026-08-04 @ 18:51:38Points: 584Comments: 32

Launch HN: EdotEnv (YC S26) – Quant Trading RL Envs to Teach LLMs Research

2026-08-04 @ 18:36:02Points: 24Comments: 17

https://edotenv.com): self-improving RL environments from Quant Trading workflows.

With all the benchmaxxing around, evals saturate and become meaningless for model comparison. Useful benchmarks should increase in difficulty as models advance. Back in our Quant jobs, Michael and I saw that the market has exactly this property: markets became more efficient as people profited from trading inefficiencies, making new profitable strategies harder to find and old ones decay over time.

This makes markets an ideal, continuously evolving benchmark for LLM training. The hard part is to turn professional quant workflows into reliable training envs, as this is a very niche expertise.

In our environments, we give LLMs a quant trading workflow and evaluate their performance on out-of-sample data: build predictive features/ models, design a portfolio, backtest strategies, adapt continuously to market regimes. Each step is a task with different self-built tools. For example, a predictive feature building task gives the agent cleaned market data of time period [0,T] to research ideas, a backtesting tool to test created features at time t on [0, t], an execution tool to trade strategies with the new features on [t+1, T] and a final evaluation. Our reward isolates the agent's feature building skills and yet benefits from market properties.

From running SOTA models in our environments, we see that i) they seem to struggle with iterating deeply on research ideas, preferring broad shallow searches; ii) higher reasoning does not seem to increase performance and iii) agents do not understand trading, e.g. when losing money they stop trading instead of trading smarter. Check out our blogs for more details! https://edotenv.com/?tab=blog

Quant workflows are essentially applied ML research, long-horizon planning and continual learning. Through our envs, we teach these transferable research skills, rather than task specific answers. Our environments are closer to a realistic research workflow: we use real-world data instead of synthetic ones; our envs naturally contain noise and real trade-offs; our rewards are verifiable and immediate, with no need for an additional LLM judge or human expert.

We open sourced a sample task repository: https://github.com/MMcollab-dotcom/feature-engineering. We plan to sell continuously improving envs to AI labs/researchers/enterprises training their own agents, who are interested in ML modelling capabilities, continual learning, long horizon planning or Quant Research in general.

We'd love feedback from anyone trying out their own agents in our envs, for either eval or post training. And of course, we are always happy to discuss the future of trading with LLMs (and no, it should not be asking the LLM to read tea leaves and give you the stock to buy tomorrow). Looking forward to your comments!

Waymo – Dallas Open to All

2026-08-04 @ 18:29:41Points: 184Comments: 197

Web security is too hard

2026-08-04 @ 18:29:32Points: 187Comments: 94

Blackmail Fail (2013)

2026-08-04 @ 18:11:09Points: 26Comments: 2

Why some people mow a lawn better than others

2026-08-04 @ 18:06:12Points: 148Comments: 132

Hop.earth – OpenStreetMap based car racing game

2026-08-04 @ 17:55:19Points: 70Comments: 35

Vlt 1.0 and Hosted Package Registries

2026-08-04 @ 17:43:55Points: 48Comments: 14

The Warp Agent CLI

2026-08-04 @ 17:08:41Points: 86Comments: 52

Truemetrics (YC S23) Is Hiring in Berlin – GTM Lead

2026-08-04 @ 17:00:12Points: 1

Mistral's Shieldstral: 3B open-weights model for multimodal moderation

2026-08-04 @ 16:36:05Points: 231Comments: 58

MariaDB: Promote getting to 10k GitHub stars in server log and client prompt

2026-08-04 @ 16:21:02Points: 43Comments: 20

When AI Benchmarks Plateau: A Systematic Study of Benchmark Saturation

2026-08-04 @ 16:10:39Points: 63Comments: 71

Perspec 1.0

2026-08-04 @ 15:40:06Points: 46Comments: 12

Apple says more ex-employees may have taken confidential data to OpenAI

2026-08-04 @ 15:37:42Points: 299Comments: 228

Show HN: Simple algorithm and color space to generate diverse skin tones

2026-08-04 @ 15:16:22Points: 421Comments: 85

I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy.

I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has.

The methodology might be a bit shaky, but hopefully the result is as helpful for others as I have found it! There's lots of room for improvements (see the Future Work section), but I'm really happy with how it turned out.

Most tech revolutions made work worse for employees

2026-08-04 @ 15:10:37Points: 56Comments: 17

Online ad giant Adform was hacked, proving once again why ad blockers are needed

2026-08-04 @ 15:05:33Points: 207Comments: 73

Xbox goes down. You can't play games you own on disc

2026-08-04 @ 12:01:02Points: 540Comments: 582

Everything I Know (1975)

2026-08-04 @ 11:33:32Points: 122Comments: 31

Nobel Disease

2026-08-04 @ 11:08:18Points: 99Comments: 95

Keyv and friends compromised in active Shai-Hulud supply chain attack

2026-08-04 @ 11:01:37Points: 220Comments: 110

DeepSeek V4 Flash on a Single AMD MI300X

2026-08-04 @ 10:00:55Points: 346Comments: 87

"Clean" Code, Horrible Performance (2023)

2026-08-04 @ 09:52:35Points: 115Comments: 102

Harness engineering for self-improvement

2026-08-04 @ 06:17:54Points: 289Comments: 62

There Will Come Soft Rains (1950) [pdf]

2026-08-03 @ 23:24:53Points: 332Comments: 365

The Red Strings Club

2026-08-03 @ 13:34:09Points: 14Comments: 6

Dates That Don't Exist (2015)

2026-08-01 @ 17:18:48Points: 106Comments: 73

Don't stop early: Case-folding source code at memory speed

2026-07-31 @ 20:07:06Points: 31Comments: 6

Archives

2026

2025

2024

2023

2022