xAI: Grok Code Fast 1

xAI: Grok Code Fast 1, released on August 26, 2025, is positioned as a speedy and economical reasoning model specializing in agentic coding, with visible reasoning traces to aid developers. The model demonstrates moderate speed performance, ranking in the 32nd percentile across 13 benchmarks, and offers moderate pricing, placing it in the 21st percentile. A standout feature is its exceptional reliability, achieving a perfect 100% success rate across all 13 benchmarks, indicating minimal technical failures and consistent response delivery. Grok Code Fast 1 exhibits strong performance in classification tasks, achieving perfect accuracy in "Keyword Topic Relevance Classification" and "Email Classification" at competitive price points and speeds. Its coding capabilities are robust, consistently scoring in the 68th to 90th percentile across multiple "Coding (Baseline)" benchmarks. The model also achieves perfect accuracy in "Ethics (Baseline)" and "General Knowledge (Baseline)," again at favorable cost and speed percentiles. While its "Mathematics (Baseline)" and "Hallucinations (Baseline)" scores are solid (63rd and 66th percentile respectively), "Instruction Following (Baseline)" is a notable strength at 86th percentile. Its "Reasoning (Baseline)" performance is also respectable at 73rd percentile. Overall, Grok Code Fast 1's key strengths lie in its high accuracy across various domains, particularly classification, ethics, and general knowledge, coupled with its exceptional reliability and competitive pricing. Its speed, while moderate, is often sufficient given its high accuracy.