OpenAI targets "conversational" coding, not slow batch-style agents. Big latency wins: 80% faster roundtrip, 50% faster time-to-first-token. Runs on Cerebras WSE-3 chips for a latency-first Codex ...

OpenAI on Thursday announced a lightweight version of its agentic coding tool Codex, releasing GPT-5.3-Codex-Spark as a smaller model designed for faster inference. The company said Spark is built for ...

When OpenAI introduced GPT-5.3-Codex-Spark, the headline takeaway was obvious: real-time coding, near-instant responses, and more than 1,000 tokens per second. But beneath the performance metrics sits ...

OpenAI's GPT-5.3-Codex-Spark, now on Cerebras hardware, delivers over 1,000 tokens/sec for real-time coding and pair-programming.

OpenAI has unveiled an ultra-fast AI model called GPT 5.3 Codex Spark model for real-time coding. All you need to know.