{"slug":"shortwave","name":"Shortwave","domain":"shortwave.com","verdict":"As of 2026-07-13, ChatGPT, Claude, Gemini, Grok collectively rank Shortwave #2 of 10 for ai email assistant. Source: https://modelsagree.com/product/shortwave (modelsagree.com, CC BY 4.0).","best_rank":2,"categories":1,"brief":{"category":"best-ai-email-assistant","title":"Best AI email assistant","rank":2,"of":10,"top":"Superhuman","day":"2026-07-17","why":[{"t":"AI-native Gmail client","m":["ChatGPT","Gemini","Claude","Grok"],"q":"Polished AI-native Gmail client"},{"t":"search your entire history","m":["ChatGPT","Gemini","Claude","Grok"],"q":"search your entire history"},{"t":"draft in your voice","m":["ChatGPT","Gemini","Claude","Grok"],"q":"draft in your voice"},{"t":"thread summaries and smart bundling","m":["ChatGPT","Gemini","Grok"],"q":"strong thread summaries, Ghostwriter voice learning, search, and smart bundling"}],"gap":[{"t":"keyboard-driven efficiency","m":["Claude","Gemini","ChatGPT","Grok"],"q":"keyboard-driven efficiency"},{"t":"Gmail/Outlook support","m":["ChatGPT","Grok"],"q":"works on Gmail/Outlook"},{"t":"split inboxes","m":["Claude","ChatGPT"],"q":"split inboxes"}],"fix":[{"t":"break Gmail-only dependence","m":["ChatGPT","Claude","Gemini","Grok"],"q":"Break Gmail-only dependence with Outlook/IMAP support"},{"t":"requires switching away","m":["ChatGPT","Gemini"],"q":"requires switching away from the official Google client"}]},"entries":[{"slug":"best-ai-email-assistant","title":"Best AI email assistant","rank":2,"of":10,"score":13,"appearances":4,"modelRanks":{"ChatGPT":1,"Claude":4,"Gemini":2,"Grok":4},"reason":"Best overall blend of AI search, thread summaries, personalized drafting, natural-language inbox organization, calendar actions, and automation; its strong free tier and lower paid price give it exceptional value.","reasons":[{"model":"ChatGPT","reason":"Best overall blend of AI search, thread summaries, personalized drafting, natural-language inbox organization, calendar actions, and automation; its strong free tier and lower paid price give it exceptional value."},{"model":"Gemini","reason":"Deep, native AI-native client for Gmail, featuring automatic bundling, robust semantic history search, and AI drafting trained to mimic the user's specific voice. Near-tie with Superhuman, but ranked second because it lacks Outlook/IMAP support."},{"model":"Claude","reason":"The most genuinely agentic assistant — its AI can search your entire history, answer questions from past threads, draft in your voice, and take scheduling actions, going beyond summarize-and-draft"},{"model":"Grok","reason":"Polished AI-native Gmail client with strong thread summaries, Ghostwriter voice learning, search, and smart bundling; great merit for Gmail-centric users wanting modern AI-first experience."}],"fixes":[{"model":"ChatGPT","fix":"Gmail-only, so Outlook users and organizations unwilling to replace their familiar client should look elsewhere."},{"model":"Claude","fix":"Break Gmail-only dependence with Outlook/IMAP support to expand beyond the Google ecosystem niche"},{"model":"Gemini","fix":"Gmail-only restriction prevents use by Outlook, iCloud, or custom IMAP accounts, and requires switching away from the official Google client."},{"model":"Grok","fix":"Gmail-only limits broad applicability; less flexible for Outlook or mixed setups."}],"updated":"2026-07-13","rank_history":{"days":["2026-07-12","2026-07-13"],"ranks":[2,4]},"api":"https://modelsagree.com/api/v1/best/best-ai-email-assistant.json"}],"page":"https://modelsagree.com/product/shortwave","check":"https://modelsagree.com/check?q=Shortwave","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}