GROK 4.5 RANKS NEAR THE TOP FOR COST EFFICIENCYAccording to Artificial Analysis, Grok 4.5 is one of the most cost-efficient frontier models available right now.Key highlights from their evaluation:• $0.31 per task on the Intelligence Index — significantly cheaper than Claude Opus 4.8 and GPT-5.5• Over 60% lower headline pricing than the top competing models• Extremely token-efficient (uses far fewer tokens per task)• Strong performance on the Coding Agent Index at just $2.59 per task in Grok Build• Sits on ...

Technological Advancement - The rate of improvement for the Grok Build harness is accelerating with the introduction of the V9 foundation model, also known as Grok 4.5 [1] - Users are expected to experience meaningful weekly enhancements in the utility of the Grok Build harness [1] Industry Performance & Benchmarking - Grok 4.5 demonstrates Pareto dominance in coding tasks based on quantitative metrics [1] - Industry analysis suggests that current benchmarks are likely directionally accurate, reflecting a strategic focus on real-world utility [1]

Technical Performance and Optimization - Grok 4.5 currently operates without the proprietary C/C++ inference software specifically mapped to GB300 hardware [1] - Implementation of the optimized inference software is projected to achieve at least a 100% (doubling) increase in processing speed [1] Industry Trends and AI Development - AI development has reached a significant performance threshold, with Grok 4.5 serving as a primary indicator of this advancement [1] - Increased model intelligence correlates with higher computational costs and extended iteration timelines for project development [1]

🚀 Grok 4.5 just dropped — and it’s making serious moves.According to @ArtificialAnlys latest evaluation:• #4 on the Artificial Analysis Intelligence Index (score: 54)Right behind Fable 5, GPT-5.5, and Claude Opus 4.8• Extremely strong on agentic tasks — knowledge work, terminal use, and customer service benchmarks (GDPval-AA v2, τ³-Banking, Terminal-Bench v2.1). It’s sitting right in line with or ahead of the top closed models.• Insanely cost-efficient: Only $0.31 per Intelligence Index task — significantly ...

RT Andrew Milich (@milichab)Grok 4.5 brings frontier performance across coding and knowledge work ...

RT Artificial Analysis (@ArtificialAnlys)Grok 4.5 in Grok Build also stands out for its efficiency. Grok 4.5 in Grok Build cost $2.49 per task while Fable 5 in Claude Code cost $11.80 and GPT-5.5 in Codex $5.07. This is driven by relatively low token pricing and the model using far fewer tokens than comparable models (1.9M average tokens used per task), significantly less than Fable 5 in Claude Code (7.2M) and GPT-5.5 in Codex (6.2M) ...

Grok 4.5 true usefulness is excellentSnorkel AI (@SnorkelAI):We obtained early access to evaluate @SpaceXAI's newest Grok 4.5 model on GDPval+: real professional deliverables (from a variety of economic sectors and occupations), graded against expert-authored rubrics. Grok 4.5: 29%. GPT 5.5: 22%. Claude Opus 4.8: 21%. https://t.co/MRRpvseP8k ...

Grok 4.5 context window will upgrade to 1M probably by next weekArtificial Analysis (@ArtificialAnlys):SpaceXAI’s Grok 4.5 scores 54 to place fourth on the Artificial Analysis Intelligence Index following only Fable 5, GPT-5.5, and Opus 4.8. It scores on par with GPT-5.5 in Codex on the Artificial Analysis Coding Agent Index in the Grok Build harness, at much lower costGrok 4.5 https://t.co/YcnW7zXYhW ...

RT SpaceXAI (@SpaceXAI)Grok 4.5 is built for real-world engineering. It excels in large codebases and handles long-running tasks that span multiple repositories, hundreds of skills, and a variety of tools. https://t.co/70qNssFqEz ...

RT SpaceXAI (@SpaceXAI)Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency.https://t.co/i8HpU7w64k https://t.co/oBjGtTsoNc ...