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OpenAI opens GPT-5.4-Cyber to Trusted Access for Cyber tiers

OpenAI expanded Trusted Access for Cyber and added GPT-5.4-Cyber, a fine-tuned variant with fewer restrictions for verified defenders. The rollout shifts advanced defensive workflows into identity-gated tiers instead of a broadly available API.

OpenAI opens GPT-5.4-Cyber to Trusted Access for Cyber tiers
New
GPT·14th April·5 min read
Breaking

Hugging Face Hub launches Kernels with 1.7x-2.5x PyTorch speedups

Hugging Face introduced Kernels on the Hub to publish pre-compiled GPU kernels matched to GPU, PyTorch version, and OS. The packaging makes kernel optimizations shareable and claims 1.7x to 2.5x speedups over PyTorch baselines with torch.compile compatibility.

Hugging Face Hub launches Kernels with 1.7x-2.5x PyTorch speedups
New
Developer Experience·14th April·4 min read
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Top storiesthis week

Claude Code users report a 5-minute cache TTL and 5x Pro Max quota burn in 1.5 hours

Anthropic acknowledged a March 6 cache optimization change, and Pro Max users report that the shorter TTL plus hidden session context now burns through Claude Code quota much faster. Watch for 500 errors and stalled streams, and apply the 2.1.105 patch if your UI hangs.

Claude Code users report a 5-minute cache TTL and 5x Pro Max quota burn in 1.5 hours
Claude Code·13th April·5 min read
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