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  • AI
  • 16 min read

Tencent Hy4 preview: 770B parameters, 49B active and a 1M context. Benchmarks, pricing and comparison with Kimi K3, GLM-5.3 and Claude Opus 5

Verified analysis of Tencent Hy4 preview: 770B/49B MoE architecture, 1M context, Gated DSA, IndexCache, MTP, Apache 2.0, benchmarks, internal blind test, API pricing, self-hosting, FP8, vLLM/SGLang and preview limitations.

  • AI
  • 21 min read

Moonshot AI publishes the Kimi K3 weights: 2.8 trillion parameters, licence, requirements and benchmarks

On 27 July 2026, Moonshot AI published the full Kimi K3 model weights, a code repository, its own licence and a technical report. This was not the day the model itself launched. Kimi K3 had been announced earlier in July and was already available through Kimi.com, Kimi Work, Kimi Code and the API. The change today is that the weights can now be downloaded and deployed independently.

HTTP Security Headers: CSP, HSTS, Permissions Policy and a Complete Configuration

HTTP security headers let a server tell the browser how scripts may be loaded, whether a page may be embedded, which device capabilities may be used, how much referrer information should be sent, how MIME types must be interpreted and whether the site may ever be reached over plain HTTP. A well-designed policy reduces the impact of several classes of attacks, including cross-site scripting, clickjacking, MIME confusion, XS-Leaks and unsafe cross-origin embedding.