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GPT-5.3-Codex-Spark is OpenAI's first AI model to run on chips from Nvidia rival Cerebras; OpenAI says Codex has more than 1M weekly active users

OpenAI is releasing its first artificial intelligence model that runs on chips from semiconductor startup Cerebras Systems Inc. …

Bloomberg Rachel Metz

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Discussion

  • @openaidevs @openaidevs on x
    GPT-5.3-Codex-Spark is the first milestone in our partnership with @cerebras. It provides a faster tier on the same production stack as our other models, complementing GPUs for workloads where low latency is critical. https://openai.com/...
  • @openaidevs @openaidevs on x
    Introducing GPT-5.3-Codex-Spark, our ultra-fast model purpose built for real-time coding. We're rolling it out as a research preview for ChatGPT Pro users in the Codex app, Codex CLI, and IDE extension. [video]
  • @kylebrussell Kyle Russell on x
    I thought this was going to come like next year, not now
  • @benbajarin Ben Bajarin on x
    As the world moves to inference, dedicated inference designs will be prominant. Great customer case for @cerebras
  • @cerebras @cerebras on x
    OpenAI Codex-Spark powered by Cerebras You can now just build things faster—at 1,000 tokens/s. [video]
  • @mweinbach Max Weinbach on x
    Codex Spark was trained on GPUs for Cerebras hardware but OpenAI added support to their inference framework for Cerebras meaning they're reading to load future models onto it too GPUs are still foundational for inference and training, though [image]