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OpenAI·Feb 12, 2026·v5.3-Codex-Spark·paid

GPT-5.3-Codex-Spark

GPT-5.3-Codex-Spark is an ultra-fast model designed for real-time coding tasks, optimized to deliver over 1000 tokens per second. It is a smaller version of GPT-5.3-Codex, tailored for rapid, interactive coding experiences.

AI AgentsAgentic AICodingLLMs
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overview

GPT-5.3-Codex-Spark is an ultra-fast model designed for real-time coding tasks, optimized to deliver over 1000 tokens per second. It is a smaller version of GPT-5.3-Codex, tailored for rapid, interactive coding experiences.

key features
  • 01Real-time coding optimization
  • 02Delivers over 1000 tokens per second
  • 03Designed for rapid, interactive coding tasks
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