You can build your own Agent OS without paying for a stack of AI APIs.
Start with free tools, then grow the system one workflow at a time. The 3-step setup: → Pick a free harness like Hermes Agent or DeepSeek Harness. → Connect a free model through Open Code or a free
Qwen3.8-flash-next, DeepSeek-v4.1 Flash, Fable-5.1 and GPT 6 Astra
I burned through my entire GPT-6 Astra weekly quota in 3 days
So i'm replacing my $200/mo Codex subscription with this... a free 32,960-star GitHub repo that runs GLM-5.3 Flash, Kimi K3, and DeepSeek V4 Flash locally [here's the exact setup i used:] 1. get colibri download
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