ChatGPT-5 and Gemini 2.5 Pro are two of the most advanced multimodal chatbots available. Both are available with a free tier option, and can create crisp, realistic images within the chat window in seconds. Compared to GPT-4, OpenAI’s flagship model takes multimodality to the next level with sharper image analysis, more natural voice and a massive 400K-token context window. The latest version is said to be safer with fewer errors and smarter at routing tasks between “chat” and “thinking” modes, making it a stronger, more versatile AI assistant.

Similarly, Gemini 2.5 Pro is Google DeepMind’s most advanced multimodal reasoning model yet. With a massive one-million-token context window, it excels in solving complex math and science problems, surpasses competitors on benchmarks, and demonstra

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