The New Frontier: Claude Opus 4.6 and GPT Codex 5.3 in Roo Code
The competition between frontier models is moving faster than ever. Anthropic and OpenAI have just released their latest updates—Claude Opus 4.6 and GPT Codex 5.3—and both are already supported in Roo Code. In this update, we break down why you might choose one over the other depending on your project: • Claude Opus 4.6: Features a massive 1 million token context window. This allows your agent to maintain perfect recall across huge codebases, combined with a subtle boost in reasoning intelligence. • GPT Codex 5.3: Optimized for backend development. It’s significantly faster than previous versions and excels at handling complex architectural logic and server-side operations. How to Access: • Opus 4.6: Available now through the Roo Code router, Anthropic, OpenRouter, and other major providers. • Codex 5.3: Available via our official ChatGPT Plus and Pro integration. Update Roo Code to the latest version to try them out. Get started: https://roocode.com Install the extension: https://www.google.com/search?q=https://marketplace.visualstudio.com/items%3FitemName%3DRooVeterinaryInc.roo-code Official Links: • GitHub: https://www.google.com/search?q=https://github.com/RooVeterinaryInc/Roo-Code • Discord: https://discord.gg/roocode • Documentation: https://docs.roocode.com #roocode #developertools #softwareengineering #aicoding #llm #largelanguagemodels #generativeai #api #aimodels #machinelearning #artificialintelligence #claude #opensource #opensource #computerprogramming #coding #windows #linux #openai #chatgpt #gemini #vscode #agi #asi #tech #googledeepmind #google #openai #chatgpt