GPT-5.3-Codex-Spark is a lightweight version of the company’s coding model, GPT-5.3-Codex, that is optimized to run on ultra-low latency hardware and can deliver over 1,000 tokens per second.

Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line, IDE extension, web interface, and the new macOS desktop app. (No API ...

OpenAI announced Monday that it’s releasing a new version of GPT-5 to its AI coding agent, Codex. The company says its new model, called GPT-5-Codex, spends its “thinking” time more dynamically than ...

In a move that caught the developer community off-guard on February 12, 2026, OpenAI launched GPT-5.3 Codex Spark. This isn't ...

OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch ...

A $20 ChatGPT Plus plan can handle real-world bug fixes. Codex helped identify both code bugs and hosting issues. AI saved time by fixing code and drafting support emails. When you're a lone ...

OpenAI on Thursday announced a lightweight version of its agentic coding tool Codex, releasing GPT-5.3-Codex-Spark as a smaller model designed for faster inference. The company said Spark is built for ...

OpenAI is testing a new model for Codex called "GPT-5.2-Codex-Max." Some users have spotted a new model, GPT-5.2-Codex-Max, when they ask Codex what model it is using. OpenAI rolled out Codex with GPT ...