
AI Coding
OpenAI GPT-5.3-Codex-Spark: How Fast Is This AI Coding Model?
Stop waiting on AI. GPT-5.3-Codex-Spark, built with Cerebras, hits 1,000+ tokens per second for real-time edits and tight feedback loops. How fast is it, really?
AI codingAI Modelbuild AI model

Paul Dhaliwal
Updated Jun 10, 2026·15 min
