# Open Source

- [Meta Avocado Is Closed-Source. The Llama Era Might Be Over.](https://sdd.sh/2026/05/meta-avocado-is-closed-source.-the-llama-era-might-be-over..md): Meta's next flagship model has been delayed twice, benchmarks below GPT-5.5 and Claude Opus 4.7, and unlike Llama — it won't be open-sourced. Meta is reportedly considering licensing Google Gemini as a stopgap. The open-source AI story Meta spent two years building is quietly unraveling.
- [DeepSeek V4 Ships: Frontier-Class Coding at 1/6th the Cost](https://sdd.sh/2026/04/deepseek-v4-ships-frontier-class-coding-at-1/6th-the-cost.md): DeepSeek V4-Pro hits 80.6% on SWE-bench Verified and 93.5% on LiveCodeBench — matching or exceeding most closed models — while costing 1/6th of Claude Opus 4.7 and releasing under the MIT license. Here's what actually matters, and what the benchmarks don't tell you.
- [MiniMax M2.7: The Open-Source Agent That Rewrote Its Own Training Loop](https://sdd.sh/2026/04/minimax-m2.7-the-open-source-agent-that-rewrote-its-own-training-loop.md): MiniMax M2.7 is the first open-source model to participate in its own development cycle — 100 autonomous rounds of scaffold optimization, 30% performance gain, 56.22% on SWE-Pro. It's not just a strong model. It's a glimpse of what model self-improvement looks like in practice.
- [OpenCode at 147K Stars: The Open-Source Terminal Agent That Won't Pick a Side](https://sdd.sh/2026/04/opencode-at-147k-stars-the-open-source-terminal-agent-that-wont-pick-a-side.md): OpenCode has 147K GitHub stars, 6.5M monthly developers, and supports 75+ LLM providers. Here's an honest look at what it gets right, where it falls short, and when it makes more sense than Claude Code.
- [GLM-5.1: The Open-Source Model That Just Beat Everyone on SWE-bench Pro](https://sdd.sh/2026/04/glm-5.1-the-open-source-model-that-just-beat-everyone-on-swe-bench-pro.md): Z.AI released GLM-5.1 today — a 754B open-weight model under MIT license that scored 58.4% on SWE-bench Pro, beating GPT-5.4, Claude Opus 4.6, and Gemini 3.1 Pro. Its headline demo: an 8-hour autonomous session that built a complete Linux desktop environment across 655 iterations. The closed-model monopoly on frontier coding capability just got its first serious challenge.