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Telegram CEO accuses Reliance of ‘sabotaging access’ for users outside India, says ‘this may be part of competitive war’

Telegram CEO Pavel Durov criticised Reliance for allegedly using BGP hijacking to block Telegram for users outside India. He linked it to a broader competitive conflict amid Telegram’s ban ahead of NEET UG exam. 

Telegram CEO accuses Reliance of ‘sabotaging access’ for users outside India, says ‘this may be part of competitive war’ Read More »

How to Build Memory-Efficient Transformers with xFormers Using Packed Sequences, GQA, ALiBi, SwiGLU, and Causal Attention

In this tutorial, we implement xFormers: a practical toolkit for building fast, memory-efficient Transformer models on GPUs. We begin by validating memory-efficient attention against a standard attention implementation, then compare their speed and memory consumption across different sequence lengths. We then examine causal masking, packed variable-length sequences, grouped-query attention, and custom ALiBi positional biases. Finally,

How to Build Memory-Efficient Transformers with xFormers Using Packed Sequences, GQA, ALiBi, SwiGLU, and Causal Attention Read More »

AI Weekly Issue #504: America blocked its best AI. China just raised $7.4 billion.

Four days after Washington cut foreign access to Anthropic’s top models, the fallout is clear — and it’s flowing to everyone but Anthropic. Cohere says it’s drowning in government inbounds, DeepSeek just closed a record $7.4B round, and China’s labs are slashing token prices up to 99%. The export control meant to protect America’s AI

AI Weekly Issue #504: America blocked its best AI. China just raised $7.4 billion. Read More »