Claude Opus 4.6 and ChatGPT 5.3 Codex launch with a 1-million-token window and 25% faster runs, letting you match tasks to each model’s strengths.
Add Decrypt as your preferred source to see more of our stories on Google. Anthropic released Claude Sonnet 4.5, calling it the best coding model yet. The model scored 77.2% on SWE-bench Verified, ...