Best Open Source LLMs to Replace Claude Fable 5, Opus 4.8, or GPT-5.5: Affordable AI Coding Alternatives 2026
Discover the top 6 open source language models that can replace Claude Fable 5, Opus 4.8, or GPT-5.5 for coding tasks at a fraction of the cost: GLM-5.1, Kimi K2.6, Qwen 3.6 Plus, MiniMax M3, MiMo V2.5 Pro, and Mistral Medium 3.5.