NVIDIA, Z.AI, and Google DeepMind release major open AI models in June 2026
June 2026 saw three significant AI model releases within weeks of each other, reshaping the open-model landscape. NVIDIA released Nemotron 3 Ultra on June 4, a 550-billion-parameter model under a fully permissive commercial license, with benchmarks placing it competitive with GPT-4.5-class models on coding and reasoning tasks. Z.AI followed on June 13 with GLM-5.2, an MIT-licensed model praised for strong multilingual and long-context performance that can run on consumer hardware via quantization. Google DeepMind also added computer-use capabilities to Gemini 3.5 Flash this month, enabling AI agents to perform multi-step browser tasks at low latency. Together, the releases signal that open and permissively licensed models are increasingly viable alternatives to proprietary frontier systems.
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