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Open models

Open models are AI models whose weights are published for anyone to download and run, usually under a license that permits some reuse. The term covers a wide range, from fully open-source releases to "open-weight" models with restrictive licenses, and the difference matters for what you can legally do with them.

50 stories · updated Oct 16

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Key facts

Checked Oct 8

Open Source AI Definition: Version 1.0, published October 28, 2024 (OSI)
Required components (OSAID): Data information, code, parameters
Four freedoms (OSAID): Use, study, modify, share, for any purpose

Latest on Open models

Industry · NewsDeepSeek funding: reported 100 billion yuan round at a $75 billion pre-money valuation, with a STAR Market IPO in viewDeepSeek is reportedly close to completing a second funding round of about 100 billion yuan (roughly $15 billion) at a pre-money valuation of about 500 billion yuan ($75 billion), led by Tencent and CATL. What's reported about the DeepSeek funding round, its investors and its Shanghai IPO plans, and what isn't confirmed.Oct 16·6 min read

Open source · NewsNvidia Nemotron 3.5 Super VL and Bolt: open weights under OpenMDW, and what the Opus 5 comparison really showsNvidia released Nemotron 3.5 Super VL, a 120B-parameter (12B active) hybrid Mamba-Transformer model with a 1M-token context, and Nemotron 3.5 Bolt 74B-A9B on October 15, 2026, with a 4 GB Bolt E4B due October 23. The license is permissive; the headline wins over Claude Opus 5 and GPT-6.1 Sol come from customized versions on narrow tasks.Oct 16·6 min read

Open source · NewsFLUX 3 Image Klein: Black Forest Labs' 5.6B open-weight image model, and what 'free under $5M' really coversBlack Forest Labs released FLUX 3 Image Klein on October 15, 2026: a 5.6B-parameter open-weight model for image generation and editing with native 4K output. Its FLUX Kommunity License lets companies under $5 million in revenue use it commercially, but only to generate images, not to distribute or host the model.Oct 16·5 min read

Models · ExplainerAnthropic's distillation defenses explained: preserved thinking, extraction classifiers and account bansOn October 12, 2026, Anthropic said new defenses against distillation have cut the data harvested from Claude by around 90 to 99%. What distillation is, why reasoning transcripts are the prize, how preserved thinking and the new classifiers work, and what they change for developers.Oct 14·7 min read

Open source · NewsLiquid AI LFM2.5-24B-A2B: a 24B open-weight MoE with 2B active parameters, its license and what it needs to runLiquid AI released LFM2.5-24B-A2B on October 13, 2026: a 24-billion-parameter mixture-of-experts reasoning model with about 2.45B active parameters and a 131K context. The weights are free to download, but Liquid's license excludes commercial use by companies with $10 million or more in annual revenue.Oct 14·5 min read

Research · AnalysisCan AI models self-replicate on IoT devices? What Anthropic's Frontier Red Team study actually showsAnthropic's Frontier Red Team says small open-weight AI models may be months away from being able to self-replicate on consumer and IoT devices. What it tested, what the 8-of-9 and 8-of-8 results mean, and what the study does not show.Oct 14·8 min read

Agents · NewsThe Week in AI #3: Claude Haiku 5.5, GPT-6 for everyone in ChatGPT, and Anthropic pulls its agents off the open internetOctober 5–11, 2026: a $0.10 Claude model with a 1M context, GPT-6 reaches free ChatGPT users, Google's Gemini agent, Anthropic's evaluation incidents and an Ollama-hunting botnet.Oct 13·7 min read

Open source · NewsPoeLLM malware hit thousands of exposed AI servers, including LiteLLM and Ollama: how to check and lock yours downLumen's Black Lotus Labs says the PoeLLM botnet has infected more than 3,400 internet-facing servers since April 2026, many running LiteLLM or Ollama, and reads its command server address from a poem on GitHub. What happened, and how to check and secure your own AI server.Oct 13·5 min read

Models · ExplainerMeta Muse Spark explained: the closed model behind Meta AI, the Muse agent app, and what's openMuse Spark, launched April 8, 2026, is Meta's proprietary replacement for Llama at the top of its lineup. It now powers Meta AI, the Muse personal agent (on iPad since October 7) and a paid API. What it is, what it costs, and how much of it is actually open.Oct 13·7 min read

Agents · NewsNous Research raises $90M and launches Hermes for Businesses, an enterprise version of its open-source agentNous Research announced a $90 million Series B on October 7, 2026, at a $1.5 billion valuation according to TechCrunch, and is turning its MIT-licensed Hermes Agent into a paid team product. What Hermes for Businesses includes, and what the "cloned 24 million times" claim does and doesn't mean.Oct 13·4 min read

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