OpenAI launches a research preview of GPT-5.3-Codex-Spark, a smaller version of GPT-5.3-Codex that it claims generates code 15 times faster, for Pro users (David Gewirtz/ZDNET)

David Gewirtz / ZDNET:
OpenAI launches a research preview of GPT-5.3-Codex-Spark, a smaller version of GPT-5.3-Codex that it claims generates code 15 times faster, for Pro users  —  ZDNET's key takeaways  — OpenAI targets “conversational” coding, not slow batch-style agents.  — Big latency wins: 80% faster roundtrip, 50% faster time-to-first-token.

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