Best Open Source AI Models in 2026, Ranked and Compared
The best open source AI models now score within single digits of GPT-5.5 and Claude Opus 4.8 on most benchmarks, and you can download their weights for free. GLM 5.2 posts a 62.1 on SWE-bench Pro, DeepSeek V4 hits 80.6 on SWE-Bench Verified, and Gemma 4 runs on a laptop while scoring 85.2% on MMLU-Pro. […]
