Hacker News accepts submissions on a wide range of topics that interest hackers, including technology and startups. Submissions related to politics, crime, sports, or celebrities are generally considered off-topic unless they demonstrate a new phenomenon.

Claude Fable 5 is a Mythos-class model designed for general use, surpassing previous models in capabilities. It demonstrates exceptional performance across various benchmarks, particularly in software engineering, knowledge work, vision, and scientific research, with greater advantages in longer and more complex tasks.

Kimi AI integrates with K3 to allow users to ask questions or assign tasks to an AI agent. The platform features an interactive interface for exploring inspiration and discovering new ideas.

JavaScript must be enabled to use the Mastodon web application. Users can alternatively try native apps for Mastodon on their platforms.

The DeepSeek API is compatible with OpenAI and Anthropic formats, allowing access through their respective SDKs. Users can apply for an API key and utilize models such as deepseek-v4-flash and deepseek-v4-pro, with deepseek-chat set to be deprecated in 2026.

microgpt is a single-file Python script consisting of 200 lines that implements a GPT-like model with no dependencies. It includes components such as a dataset, tokenizer, autograd engine, neural network architecture, Adam optimizer, and both training and inference loops.

Deleting an OpenAI account is a permanent action that prevents access to OpenAI services, including ChatGPT and API. User data will be deleted within 30 days, although some data may be retained longer as required by law, and mobile subscriptions must be canceled separately if subscribed through the Apple App Store or Google Play Store.

Claude Opus 5 is a new AI model developed by Anthropic, designed to improve natural language understanding and generation. It incorporates safety features and enhanced performance metrics to better align with user intentions.

Claude Opus 4.8 introduces enhancements over version 4.7, improving benchmark performance and collaboration capabilities. New features include user-controlled effort levels, a "dynamic workflows" capability in Claude Code for large-scale problem-solving, and a fast mode for quicker task execution.

Gemma 4 delivers maximum compute and memory efficiency for mobile and IoT devices, enhancing intelligence in these platforms. It supports the development of autonomous agents capable of planning, navigating apps, and completing tasks, while also offering strong audio and visual understanding for rich multimodal applications and multilingual experiences that extend beyond simple translation.