GPT-5.3-Codex-Spark
AssessPlatforms
OpenAI's real-time coding model for generating code interactively.
Why it's here
Placed in Assess: 2 article(s) of evidence from 1 source(s), led by model releases, with 0 in the last 30 days. Confidence 31%.
Evidence (2)
- 8OpenAI Blog·2/12/2026model_releaseOpenAI Introduces GPT-5.3-Codex-Spark
OpenAI introduced GPT-5.3-Codex-Spark, described as its first real-time coding model. The model offers up to 15x faster generation, supports a 128k context window, and is available in research preview for ChatGPT Pro users.
- 7OpenAI Blog·2/5/2026model_releaseGPT-5.3-Codex System Card
OpenAI says GPT-5.3-Codex is its most capable agentic coding model so far. It combines GPT-5.2-Codex's coding performance with GPT-5.2's reasoning and professional knowledge capabilities.