
SpaceXAI and Cursor have unveiled Grok 4.5, a new AI model developed jointly after SpaceXAI's $60 billion acquisition of Cursor. The model demonstrates strong performance in coding and knowledge tasks, with benchmarks comparable to leading models like Claude Opus 4.8 and GPT 5.5. Grok 4.5 operates at a speed of 80 tokens per second and claims a fourfold efficiency improvement over its competitors. With pricing set at $2/$6 per million input/output tokens, it undercuts many frontier models, making it a competitive option in the AI market.
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This release quietly expands llama.cpp's hardware support to include Qualcomm's Hexagon NPU on Linux arm64, a significant step for local inference on Snapdragon devices. It also updates CUDA builds to version 13.4 and introduces ROCm 10.0 binaries, keeping the project aligned with the latest NVIDIA and AMD driver ecosystems. KleidiAI on Apple Silicon is temporarily disabled in this build, likely due to stability checks rather than a feature rollback. For developers targeting edge AI or diverse GPU stacks, this update ensures broader compatibility without requiring custom compilation.
© Lev SelectorNVIDIA introduced the NVFP4 4-bit format and SoL-Pi technology, which uses 2x fewer tokens for improved efficiency.
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SpaceXAI unveils Grok 4.5, an 'Opus-class' AI model
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