Alternatives to reality-engine

Open-source ECS blueprint that turns real-time data feeds into a queryable entity graph for AI world models.

Free, open-source curriculum that rebuilds every core AI algorithm from raw math first — 523 lessons across 20 phases in Python, TypeScript, Rust and Julia.

Open-source autonomous research agent that plans, reads sources in parallel, and writes cited reports you host yourself

OpenAI o1 is the 2024 chain-of-thought reasoning model — now deprecated in the API and locked to ChatGPT Plus and Pro under Legacy models.

Open-source, local-first AI workbench for the full scientific research lifecycle, with bundled scientific database tools and your choice of model provider.

BALROG is an open ICLR-published benchmark that scores agentic LLM and VLM reasoning across seven procedurally generated games.

Fojin aggregates digitized Buddhist canons from CBETA, SuttaCentral and 613 other open sources with AI Q&A that cites the passage it came from.

KnowTree is a browser-based research workspace that turns AI chats into branching conversation maps you can compare across models.

Multi-agent research platform that plans, delegates, reviews, and repairs work into sourced deliverables, decks, and models

Open-source AI chat and search over your internal knowledge, with permissions enforced at query time and full self-hosting.

Open-source GPT-2 research model that turns English prompts into playable Super Mario Bros level layouts.

Open-source real-time interactive world model that turns keyboard and mouse input into 25 fps video.

AI co-researcher for deep literature search that follows citation trails to find the papers you'd miss

Silico is Goodfire's interpretability agent for understanding, debugging, and controlling the internals of your AI models

Anara is an AI research workspace that searches your library and the web and cites every answer back to the exact passage in the source.

Free AI-powered research tool for searching 238 million scientific papers, with TLDR summaries and citation graphs.

Perplexity is a cited AI answer engine that footnotes every AI search answer with a live source link you can verify.

Visual citation mapping that turns one seed paper into a literature discovery map across 310+ million articles

Turn open-access research papers into audio podcasts and ask them questions by chat.

Basis is a nonprofit AI research lab publishing open work on multi-agent coordination and formal verification.

AI research workspace that searches, reads, and cites your document library with verifiable source references.

A visual knowledge base with an AI Tutor that builds structured courses from your own sources.

Sharly AI is a document research workspace that summarizes, compares, and cites your files with verifiable sources.

Google's source-grounded research assistant — now branded Gemini Notebook — answers only from documents you upload and cites the passage it used.

Moonshot AI's agentic workspace where deep research, slides, sheets, sites and always-on agents produce a finished deliverable instead of a draft.

Deconstructor is a free browser-based tool that turns any word into an interactive, editable graph of its prefixes, roots, and suffixes.

PubMed AI searches, chats over, and summarizes open-access biomedical literature for free — no registration required.

An illustrated O'Reilly guide by Jay Alammar and Maarten Grootendorst that teaches Python developers to build and refine large language models.

A free, open-access corpus of 81,735 modern Chinese poems by 3,489 poets, searchable and downloadable for research and reading.

Causal world model that simulates open-ended physical futures in real time, from your actions step by step.