For the past couple of months, I’ve been running occasional side-by-side tests of the deep research products from OpenAI, Google, Perplexity, DeepSeek, and othe

For the past couple of months, I’ve been running occasional side-by-side tests of the deep research products from OpenAI, Google, Perplexity, DeepSeek, and others. Ever since Google upgraded its deep research model to Gemini 2.5 Pro Experimental, it has been the best for the tasks I give them, followed closely by OpenAI. The others were far behind. I ran two of the same prompts just now through Anthropic’s new Advanced Research. The results for it and for ChatGPT and Gemini appear below. Opinions might vary, but for my purposes Gemini is still the best. Claude’s responses were too short and simple and they didn’t follow the prompt as closely as I would have liked. Writing conventions in Japanese and English https://claude.ai/public/artifacts/c883a9a5-7069-419b-808d-08d49fe76b32 https://claude.ai/public/artifacts/c883a9a5-7069-419b-808d-0... https://docs.google.com/document/d/1V8Ae7xCkPNykhbfZuJnPtCMHQEKyKd172-6GsVIxk7w/edit?usp=sharing https://docs.google.com/document/d/1V8Ae7xCkPNykhbfZuJnPtCMH... https://chatgpt.com/share/680da37d-17e4-8011-b331-6d4f3f5ca7a9 https://chatgpt.com/share/680da37d-17e4-8011-b331-6d4f3f5ca7... Overview of an industry in Japan https://claude.ai/public/artifacts/ba88d1cb-57a0-4444-8668-e21c5b59c2b2 https://claude.ai/public/artifacts/ba88d1cb-57a0-4444-8668-e... https://docs.google.com/document/d/1j1O-8bFP_M-vqJpCzDeBLJa3TVszuc21ry9r81P3Xa0/edit?usp=sharing https://docs.google.com/document/d/1j1O-8bFP_M-vqJpCzDeBLJa3... https://chatgpt.com/share/680da9b4-8b38-8011-8fb4-3d0a4ddcf7d3 https://chatgpt.com/share/680da9b4-8b38-8011-8fb4-3d0a4ddcf7... The second task, by the way, is just a hypothetical case. Though I have worked as a translator in Japan for many years, I am not the person described in the prompt.