If you're looking for open source agents, which can run locally, in Docker, or in the cloud, and which have a consistent track record of acing benchmark scores like SWE-bench, check out https://github.com/All-Hands-AI/OpenHands
We're about to release our Agent SDK (https://github.com/All-Hands-AI/agent-sdk/) which provides devs with all the nuts and bolts you need to define custom prompts, tools, security profiles, and multi-agent interfaces
Shameless plug on https://github.com/aperoc/toolkami here which is designed to be simple enough such that you can truly "own" and understand your agents.
It has a CLI which spins up sandbox for your agents, and has curated tools for your agent to be useful.
We're about to release our Agent SDK (https://github.com/All-Hands-AI/agent-sdk/) which provides devs with all the nuts and bolts you need to define custom prompts, tools, security profiles, and multi-agent interfaces
How about GPT 20b and 120b?
Qwen3?
It has a CLI which spins up sandbox for your agents, and has curated tools for your agent to be useful.