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Multiple major AI model releases including Anthropic Sonnet 4.6, Google Gemini 3.1 variants, and OpenAI GPT-5.3 Instant

Model release Provisional 65% confidence first seen

Several major AI labs released updated model versions during the same period, including Anthropic's Sonnet 4.6 with expanded context window, Google's Gemini 3.1 Pro and Flash-Lite models with performance improvements, and OpenAI's GPT-5.3 Instant with reduced hallucination rates. Microsoft also released Phi-4-reasoning-vision-15B as a multimodal model option.

Anthropic Alibaba Claude Sonnet 4.6 Dario Amodei GPT-5.3 Instant Gemini 3.1 Flash-Lite Gemini 3.1 Pro Google Grok Meta Microsoft OpenAI Phi-4-reasoning-vision-15B xAI

Source coverage

LWiAI Podcast #235 - Sonnet 4.6, Deep-thinking tokens, Anthropic vs Pentagon Last Week in AI Deep Learning Weekly: Issue 445 Deep Learning Weekly

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