AI Showdown 2025: ChatGPT vs Google Gemini vs Anthropic Claude – Which Model Leads the Pack?
OpenAI’s ChatGPT runs on GPT-4o (GPT-4 Omni), introduced in early 2025 as a multimodal model that handles text, images, and voice. GPT-4.5, code-named Orion, was rolled out to ChatGPT Pro in February 2025 to boost performance ahead of GPT-5, which is under development for late-summer 2025. Anthropic released Claude 4 in May 2025, with two main variants—Claude 4 Opus and Claude 4 Sonnet—featuring a 200K token context and an extended thinking mode for chain-of-thought reasoning. Google’s Gemini 2.5 arrived in mid-2025 as the first publicly available multi-agent model, with Pro and Flash variants and a full 1M token context. Gemini