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OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch

February 12, 2026 at 06:01 PM
By ZDNet

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OpenAI's new GPT-5.3-Codex-Spark promises ultra-fast, conversational AI coding, if you can tolerate a few trade-offs.

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OpenAI's new GPT-5.3-Codex-Spark promises ultra-fast, conversational AI coding, if you can tolerate a few trade-offs. OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch. Stay informed with the latest developments and expert analysis on this important story.

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OpenAI's new GPT-5.3-Codex-Spark promises ultra-fast, conversational AI coding, if you can tolerate a few trade-offs.

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