A hands-on review of Google's Agent Development Kit - the open-source framework for building multi-agent AI systems, with a look at its strengths, limitations, and how it stacks up against LangGraph and CrewAI.
ByteDance's DeerFlow 2.0 is a powerful open-source agent harness that executes long-horizon tasks inside Docker sandboxes - impressive engineering, but not a turnkey solution.
NVIDIA Nemotron 3 Super is the strongest open-weight model for agentic coding as of March 2026, but its efficiency-first design means real trade-offs on general knowledge and chat quality.
Mistral's first open-weights TTS model clones voices from 3 seconds of audio, beats ElevenLabs on price, and arrives with real limitations worth knowing.
Moonshot AI's Kimi K2.5 delivers best-in-class open-weight math and a genuinely novel multi-agent architecture, but a brutal hallucination rate and slow inference limit its real-world reliability.
Microsoft's Phi-4 reasoning family delivers near-70B-class math performance in a 14B open-weight package, but the overthinking problem is real and the use case is narrower than the benchmarks suggest.
