OpenAI GPT-5.3-Codex-Spark: How Fast Is This AI Coding Model?
GPT-5.3-Codex-Spark, powered by Cerebras, introduces a new approach to AI coding by focusing on real-time interaction and ultra-fast inference. Delivering over 1,000 tokens per second with reduced latency across the entire pipeline, it enables developers to iterate instantly and maintain control of their workflows. While traditional models prioritize long, autonomous tasks, Codex-Spark is built for rapid, interactive development—making speed a critical factor in modern AI-powered applications.
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