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<div style="display: none; max-height: 0px; overflow: hidden;">Grok 4.3 improves on cost-per-intelligence relative to Grok 4.20 0309 v2. It scores higher on the Intelligence Index while costing less to run </div>
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<h1><strong>TLDR AI <span id="date">2026-05-01</span></strong></h1>
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<strong>Don't let your keyboard slow your coding agents down (Sponsor)</strong>
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<strong>xAI has launched Grok 4.3 (3 minute read)</strong>
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Grok 4.3 improves on cost-per-intelligence relative to Grok 4.20 0309 v2. It scores higher on the Intelligence Index while costing less to run the full benchmark suite. Grok 4.3 is one of the lowest-cost models at its intelligence level. It performs strongly on instruction following and agentic customer support tasks.
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<strong>Anthropic Nears $900B Valuation Round (2 minute read)</strong>
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Anthropic reportedly moved to close a ~$50B round that could value the company around $900B or higher, driven by strong investor demand and rapid revenue growth nearing $40B run rate.
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KV cache locality is a multiplier on existing hardware. The same GPUs serving the same model and handling the same traffic can produce measurably different throughput and latency depending on which GPU gets which request. 'Balanced' and 'efficient' are not the same thing when every request carries thousands of tokens that might already be cached somewhere in the cluster. This post discusses the cost of recomputation, how to measure it, and what changes when load balancers understand token locality.
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GPT-5.5 nearly halves runtime on SpatialBench relative to GPT-5.4, but its accuracy remains about the same. Opus 4.7 is similarly tied with Opus 4.6. Improvements and spatial biology are unlikely to come from general reasoning gains alone. It will likely require explicit training on statistical design, platform-specific analysis stems, replicate-aware differential testing, and other spatial biology knowledge.
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Speculative decoding was applied to RL rollouts without changing output distributions, delivering up to 1.8x throughput gains and projected 2.5x end-to-end speedups at scale.
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