Open-source AI: the wave of open models
Against proprietary models like Claude, open-source AI is advancing fast: open weights you download, deploy and customize. This dossier tracks Llama, Mistral, DeepSeek, Qwen and others.
Latest open-source AI news
- Launching an opt-in vulnerability-finding service for open-source software — Anthropic
- Accelerating open-source biomolecular models with Claude — Anthropic
- Accelerating open-source biomolecular models with Claude — Anthropic
- We've released the Claude API skill, an open-source Agent Skill that gives Claude up-to-date reference material for building on the Messages API and C — Anthropic (release notes)
- Overseas Open-Source AI Models Speed Up Development: Mistral & "US Version of DeepSeek" Unveil New Breakthroughs — 36Kr
- Show HN: Stopping AI agent swarms from hacking our systems — Hacker News
- NVIDIA's Acquisition of Hugging Face: What Impacts on China's Open-Source AI Models? — 36 Kr
- Qwen & Zhipu AI Open-Source New Large Language Models Overnight – Both Priced Lower Than DeepSeek, Sparking Fierce Price War in Domestic Chinese LLM Market — 36 Kr
- Launching an opt-in vulnerability-finding service for open-source software — Anthropic (recherche)
- Show HN: DeepSeekGUI – A Windows desktop client for DeepSeek's coding agent — Hacker News
Open weights: what does it mean?
An 'open-weight' model can be downloaded and run on your own infrastructure, fine-tuned and audited. It isn't always strictly 'open source' in the software sense, but opening the weights changes the game.
Why it matters
Controlled cost, data control, sovereignty, customization: open source meets needs proprietary doesn't. On the other side, models like Claude bet on turnkey quality.
Key players
Meta (Llama), Mistral, DeepSeek and Qwen (Alibaba) dominate open weights. See our Claude vs Mistral, Claude vs DeepSeek and Claude vs Qwen comparisons.
Frequently asked questions
What is open-source AI?
Models whose weights are published, enabling self-hosting, fine-tuning and auditing.
Is Claude open source?
No, Claude is proprietary; it's used via claude.ai and the API.
What are the best open-source models?
Llama, Mistral, DeepSeek and Qwen are among the most adopted; see our comparisons.
Claude News is published by Héra SASU. Independent media, not affiliated with Anthropic.