Anthropic launches Claude Opus 4.5 to take on ChatGPT and Gemini: here’s what you should know

Soon after the GPT-5.1 and Gemini 3 launch, Anthropic has launched its Claude Opus 4.5 model. The AI startup claims that its new model is the best in the world for coding, agents, and computer-use-related tasks.

Where does it rank?

Claude Opus 4.5 achieves an 80.9% score on SWE-bench Verified, a real-world software engineering benchmark. Notably, Opus 4.5 is the first-ever model to breach the 80% mark on SWE-bench Verified. In comparison, Google’s newly released Gemini 3 Pro got a score of 76.2%, while OpenAI’s GPT-5.1 Codex Max got a score of 77.9%.