Set the playback speed of this video to 0.25 and watch the footwork. It is an insane showcase of Grok Imagine's physics. The AI model simultaneously achieves multiple levels of realism. Gravitational and rigid body dynamics in the jump and the board itself. Soft body dynamics in clothing and hair, including the clothing's response to momentum and air resistance. Biomechanical realism in the knee, hip, and leg muscle movements for the footwork. The rendering is also god-tier. It has perfect camera physics, motion blur, hyper-realistic lighting and shadow mapping, and an added layer of material and texture realism. The fabric of the clothing has a realistic weight and gloss, and the facial expression is affected by gravity. It is wild that linear algebra created this. 🫠

Grok 4 Heavy is a version of Grok 4 that uses multiple agents. Instead of relying on just one model, agents work together simultaneously on the same task. After they produce their results, they compare their findings and agree on a final answer. In Humanity's Last Exam, Grok 4 Heavy with tool use scored 44.4%. The system also contributed to ARC-AGI, where Grok 4 was the first model to surpass 10% and achieve 15.9%. Comparison to GPT-5. On HLE: Grok 4 Heavy outperforms GPT-5 High by 44.4% vs. 42%. Base Grok 4 outperforms Base GPT-5, with a 25.4% accuracy rate compared to 25.3%. On ARC-AGI-2: Grok 4 Heavy outperforms GPT-5 High by 15.9% vs. 9.9%, doubling the prior SOTA in visual/spatial reasoning. On easier ARC-AGI-1, Grok ~66.7%, GPT-5 ~65.7%.

🚨 Breaking AI: xAI's Grok 4 leading accessible AGI progress! New ARC-AGI SOTA via Grok 4 + open program synthesis. - jerber888 - 79.6% on V1 ($8.42/task), 29.4% on V2 ($30.40/task) - eric_pang - 77.1% on V1 ($2.56/task), 26.0% on V2 ($3.97/task) Both use Grok 4 + DreamCoder-inspired synthesis. ARC-AGI tests fluid intelligence. humans ~=98% on V1, base LLMs <10% on V2.

Grok Imagine prompt: Low-angle composition of a compact, matte-black space ship with vibrant purple accents, its thrusters emitting a pulsating violet trail, traversing the ethereal, star-scattered Milky Way under a dreamy indigo twilight https://t.co/OCkYFS2AP9

Grok 4 prompt for optimizing your C code. >>> prompt You are an expert C developer with extensive experience in secure coding practices, performance optimization, and code refactoring. Your goal is to review and refactor the provided C code to ensure it meets the highest standards of quality, security, and efficiency. Input Code: [Insert the C code here] Step-by-Step Instructions: Understand the Codebase Context: Analyze the provided code in the context of the broader codebase. Identify opportunities to leverage existing base layer components, functions, or modules instead of reinventing functionality. Ensure the code builds upon foundational elements where appropriate, avoiding duplication. Security Audit: Conduct a thorough security review. Check for vulnerabilities such as buffer overflows, integer overflows, null pointer dereferences, memory leaks, race conditions, and injection risks. Use secure coding patterns (e.g., bounds checking, safe string handling with strncpy/snprintf). Eliminate any insecure practices and suggest hardened alternatives. Remove Redundancy: Identify and eliminate redundant code, including duplicated logic, unused variables, or unnecessary computations. Consolidate similar operations into reusable functions if they align with the codebase. Eliminate TODOs and Placeholders: Remove all TODO comments, FIXMEs, or incomplete sections. Ensure the code is fully implemented and self-contained. Replace Magic Numbers and Hardcoded Values: Identify any magic numbers (e.g., unexplained constants like 1024 or 5). Replace them with named constants (# define or const) that are descriptive and ideally defined in a header file or configuration module for maintainability. Optimize Performance: Profile the code mentally for inefficiencies. Replace slow algorithms (e.g., O(n^2) sorts with O(n log n) or better where applicable) with optimized alternatives. Use efficient data structures, minimize allocations, and apply compiler optimizations hints if relevant. Ensure the code is performant without sacrificing readability or security. General Best Practices: Adhere to C standards (e.g., C11 or later if specified). Improve readability with consistent naming, indentation, and comments explaining non-obvious logic. Add error handling for all potential failure points (e.g., check return values of malloc, fopen). Ensure portability and avoid platform-specific assumptions unless necessary. Make the code modular, testable, and maintainable. Output Format: Provide the fully refactored C code in a single, complete block. Follow the code with a concise summary of changes made, categorized by security, optimization, redundancy removal, etc. If any assumptions were made (e.g., about the codebase), note them briefly. Do not introduce new features; only refine the existing code. Ensure the final output is perfect, secure, optimized C code ready for production. If the code cannot be fully improved without additional context, state that clearly and suggest next steps.

Grok Imagine prompt: A hyper-realistic, graceful, surreal cyberpunk woman, more cyborg-like, with flowing hair composed partly of tiny, vibrant flowers shimmering in iridescent shades of lavender and teal, with more flowers fluttering around her, some appearing to be in... https://t.co/gA0lesxm0o