Large Language Models
Feb 12, 2026
Launch of GPT-5.3-Codex-Spark, a New Real-Time Coding Model
Feb 12, 2026
AI Summary
GPT-5.3-Codex-Spark has been introduced as the first real-time coding model, offering significant improvements in speed and context length. It is currently available in research preview for ChatGPT Pro users.
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- GPT-5.3-Codex-Spark is the first real-time coding model developed by the company.
- The model boasts a generation speed that is 15 times faster than previous versions.
- It supports a context length of 128,000 tokens.
- The model is currently in research preview and accessible to ChatGPT Pro users.