OpenAI Releases GPT-5.3-Codex-Spark: First Real-Time Coding Model in Research Preview
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meetpateltech
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Summary
OpenAI has released GPT-5.3-Codex-Spark, a smaller version of GPT-5.3-Codex designed specifically for real-time coding. This marks the first milestone in their partnership with Cerebras announced in January. The model is optimized for ultra-low latency hardware, delivering over 1000 tokens per second while maintaining strong coding capabilities. It's currently available as a research preview for ChatGPT Pro users, allowing developers to experiment with the technology early.
Key quotes
· 3 pulledCodex-Spark marks the first milestone in our partnership with Cerebras, which we announced in January
Codex-Spark is optimized to feel near-instant when served on ultra-low latency hardware—delivering more than 1000 tokens per second while remaining highly capable for real-world coding tasks
We're sharing Codex-Spark on Cerebras as a research preview to ChatGPT Pro users so that developers can start experimenting early
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