AG2
the community autogen fork — active but overshadowed
preserves autogen's conversational multi-agent patterns under community governance and is actively developed — but at under 5,000 stars it's directly overshadowed by microsoft's own successor, so momentum is the real risk.
ag2 is the community fork of autogen, founded by autogen's original creators after they left microsoft, carrying the autogen 0.2 lineage (conversableagent, groupchat) forward and branding itself 'the open-source agentos'. it's active — a beta async/event-driven rewrite launched in 2026 — with retries, tool use, human-in-the-loop via conversation patterns, and observability integrations, all cross-provider.
the honest risk is momentum: at under 5,000 stars it's directly overshadowed by microsoft agent framework, which now owns the 'autogen successor' narrative. if you specifically want the familiar autogen conversation model with backward compatibility it's a reasonable pick; underwrite its longevity carefully.
the description above is ours, condensed from the ranking. pricing moves — check it on the vendor's own page before you rely on it.
- category
- ai agent frameworks
- pricing
- free — Apache-2.0 (open source)
- website
- github.com
preserves autogen's conversational multi-agent patterns under community governance and is actively developed — but at under 5,000 stars it's directly overshadowed by microsoft's own successor, so momentum is the real risk.
we researched this category against vendors' own pricing pages and licence files. that is where this line comes from — not from the vendor, and not from anything they paid for.