Anthropic's Claude Opus 4.5 Is Here To Take On ChatGPT And Gemini: All You Need To Know

US-based AI startup Anthropic has announced the launch of its most advanced AI model Claude Opus 4.5 which will compete with OpenAI's ChatGPT and Google's Gemini. The announcement comes just weeks after

OpenAI rolled out GPT-5.1 and Google released Gemini 3.According to the company, the highlight of Opus 4.5 is its 80.9 per cent score on the SWE-bench Verified benchmark, a major milestone in AI coding performance. This makes it the first AI model ever to cross the 80 per cent mark, beating both Gemini 3 Pro (76.2 per cent) and GPT-5.1 Codex Max (77.9 per cent).For context, SWE-bench tests how well an AI can fix real software bugs -- the higher the score, the more dependable the model is for coding and computer-related tasks.Anthropic also claims that Opus 4.5 performed better than human candidates on a two-hour engineering assessment used to hire performance engineers.The company says this test measures technical ability and decision-making under pressure -- a result that again sparks questions about how quickly AI might begin replacing or reshaping engineering roles in the near future.Claude Opus 4.5 claims to offer stronger agentic AI skills, meaning it can reason, plan and take multi-step actions with minimal supervision The model topped a benchmark designed to evaluate how well an AI handles real-world, multi-turn tasks. In one demo, Opus 4.5 successfully resolved a customer support issue by recommending an upgrade before modifying a booking -- a scenario that required contextual understanding and judgment.Anthropic also stressed that Opus 4.5 is its most aligned and secure model yet, with major improvements against prompt injection attacks. In simple terms, it’s harder to trick the AI into producing harmful or unintended outputs.With its coding dominance, improved agent capabilities, and stronger safety guardrails, Claude Opus 4.5 positions itself as a serious competitor to OpenAI and Google.