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OpenAI releases a research preview of GPT-4.5, their largest and best chat model yet. This model advances unsupervised learning at scale, resulting in broader knowledge, reduced hallucinations, and more intuitive interactions. With improved accuracy on factual questions and better understanding of human intent, GPT-4.5 is available to Pro users and developers worldwide.
Anthropic announces Claude 3.7 Sonnet, their first hybrid reasoning model featuring significant improvements in coding, content generation, and data analysis capabilities. Claude Code, a command line tool for agentic coding, is introduced as a limited research preview.
xAI announces Grok 3 Beta and Grok 3 mini Beta, featuring unprecedented reasoning capabilities through reinforcement learning at scale. These models demonstrate exceptional performance on mathematical and coding challenges, with Grok 3 achieving 93.3% on the 2025 AIME and 84.6% on graduate-level expert reasoning tasks.
DeepSeek announces DeepSeek-R1, a fully open-source reasoning model released under MIT license with performance comparable to OpenAI-o1. The release includes six distilled models (32B & 70B) and introduces an API with competitive pricing. DeepSeek-R1 features large-scale reinforcement learning in post-training and excels at math, code, and reasoning tasks.