OpenAI Launches GPT-5.1-Codex-Max with 24-Hour Coding Sessions and 42% Speed Boost
Summary
OpenAI unveils GPT-5.1-Codex-Max, a groundbreaking coding AI that operates continuously for 24 hours, runs up to 42% faster while using 30% fewer tokens, and becomes the first OpenAI model specifically optimized for Windows environments with enhanced cybersecurity monitoring.
Key Points
- OpenAI releases GPT-5.1-Codex-Max, which handles massive coding workloads through improved context handling and can work on tasks for up to 24 hours using millions of tokens in a single session
- The new model runs 27-42% faster while using 30% fewer tokens and generates more concise code with fewer lines compared to the previous version
- Codex Max becomes the first OpenAI model specifically trained for Windows environments and includes enhanced cybersecurity monitoring for long-running coding tasks