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xAI ships Grok Build, a terminal coding agent that spawns up to 8 concurrent sub-agents on Grok 4.3
xAI entered the coding-agent race with Grok Build — a terminal-based agent CLI taking direct aim at Claude Code and OpenAI Codex. Currently early beta, available to SuperGrok Heavy subscribers at $300/month. ## What it does Runs from the terminal, driven by natural-language prompts. It generates implementation plans, edits files, executes shell commands, manages dependencies,… Continue reading
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RTPurbo turns a full-attention LLM sparse in a few hundred training steps — 9.36x prefill speedup at 1M context
“Full Attention Strikes Back” introduces RTPurbo, a method that converts a standard full-attention LLM into a sparse-attention one with only a few hundred training steps — near-lossless accuracy, big efficiency gains. ## The numbers Up to 9.36x prefill speedup at 1M-token context, and about 2.01x decode speedup. The trick: keep the full KV cache only… Continue reading
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DelTA reweights RL training so formatting tokens stop drowning out the signal that matters
DelTA is a new method for reinforcement learning from verifiable rewards (RLVR) — the training technique behind most of today’s reasoning models. The insight is sharp: the policy-gradient update in RLVR implicitly acts as a linear discriminator over token-gradient vectors, deciding which token probabilities go up or down. ## The problem it fixes That discriminator… Continue reading
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DCP gives AI agents permission, not keys — credentials stay on your laptop, you approve from your phone
DCP is a security layer for AI agents built on a simple inversion: agents get permission, not keys. Your Solana wallets and API credentials stay on your laptop. When an agent needs to act, it asks for permission, and you tap once on your phone to approve. Local-first, open source, works with Claude, Cursor, OpenClaw,… Continue reading
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Microsoft ships dotnet/skills — official .NET and C# skills for coding agents from the team that builds the platform
Microsoft published dotnet/skills — an official repository of skills that teach AI coding agents how to work with .NET and C#. The distinguishing claim: these come from the team that ships the platform, using the same workflows they run with first-party engineering teams. ## What’s in it Skills span the .NET surface: data access and… Continue reading
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Training Data turns microgames into a pipeline for collecting AI training data
Training Data launched on Product Hunt — an AI experience that collects training data through microgames. Players engage with small, game-like tasks, and their interactions become labeled data for training AI models. ## The data-flywheel angle The expensive input for most AI systems isn’t compute, it’s labeled data — especially human preference and interaction data.… Continue reading
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buildpipe lets you compose, run, and automate multi-step AI development workflows
buildpipe launched on Product Hunt — a tool for composing, running, and automating multi-step AI development workflows. The idea: chain the discrete steps of an AI build (data prep, model calls, tool invocations, evaluation) into a repeatable pipeline instead of re-running them by hand each time. ## Where it fits This is the same conceptual… Continue reading
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Gated DeltaNet-2 decouples erase and write in linear attention — beats Mamba-3 and KDA at 1.3B
Gated DeltaNet-2, from the NVIDIA and MIT team behind the original, fixes a subtle flaw in how linear-attention models manage memory. Prior delta-rule models (Gated DeltaNet, KDA) used a single scalar gate to do two jobs at once — erasing old content and writing new content. v2 decouples them, and the gains show up exactly… Continue reading
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π-Bench finds proactive assistance still stumps frontier agents — finishing a task is not the same as reducing your burden
π-Bench is a new benchmark testing something most agent evaluations skip: can an AI assistant anticipate what you need before you spell it out? It comprises 100 multi-turn tasks across 5 domain-specific user personas, and the headline finding is sobering — proactive assistance remains hard for frontier agents. ## What it tests Users rarely state… Continue reading
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Slideshot’s AI agent drives your web app via MCP and returns a polished demo video
Slideshot turns product demo video creation into an agent task. You describe the flow you want to show; the agent drives your web app autonomously through MCP, records the walkthrough, and returns a polished video plus GIF — complete with zoom effects, cursor motion, and a custom intro animation. ## How it works Slideshot connects… Continue reading
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