Best Chatbots & Assistants (2026)
General-purpose AI chatbots for conversation, research, and productivity.
8 tools ranked S through F.
Tier rankings
Full ranking
Sorted by overall score. Click any tool for the full review.
| # | Tool | Tier | Overall | Ease | Output | Value | Features |
|---|---|---|---|---|---|---|---|
| 1 | ChatGPT The chatbot that started the AI revolution. **GPT-6 Astra launched 2026-09-03** -- OpenAI's new flagship at $10/$50 per 1M (long-context $20/$75, Fast mode 2x, no Fast mode under EU data residency), rolling out to Plus, Pro, Business and Enterprise within existing allowances, and the **first model OpenAI has ever designated Critical for cyber capability**. Enterprise access is off by default at launch. On 2026-08-06 the free tier changed materially: GPT-5.6 Luna becomes the default for Free and Go users with UNLIMITED text chats and a new Think button, while Plus/Pro get a retuned GPT-5.6 Sol in Chat plus an effort slider. GPT-5.6 went GA 2026-07-09 (Sol $5/$30 per 1M) and OpenAI CUT Luna 80% to $0.20/$1.20 and Terra 20% to $2/$12 on 2026-07-30. On 2026-08-13 OpenAI previewed **Ultrafast**, a Cerebras-powered API tier running GPT-5.6 Sol up to 14x faster (750 output tok/s) -- waitlisted, capacity-limited, and with no pricing published. Also now: Health in ChatGPT (7/23, US) and the ChatGPT Work agent (7/9) | A | 8.8 | 10 | 8 | 8 | 9 |
| 2 | Perplexity AI AI-powered search engine that gives cited answers instead of a list of links. **Hybrid Compute on Mac shipped 2026-09-01**: Perplexity Computer now splits a single task between cloud frontier models and a compact local model running on the Mac, with an on-device privacy gate that can mask, withhold, refuse or ask for consent before anything leaves the machine | A | 8.5 | 9 | 8 | 9 | 8 |
| 3 | Alexa+ Amazon's reborn consumer AI assistant -- rolls out to every Alexa device with memory, multi-turn agent tasks, and Fire TV navigation | A | 8.3 | 9.5 | 7 | 8.5 | 8 |
| 4 | Gemini Notebook (formerly NotebookLM) Google's free research assistant that turns your documents into an AI you can query -- and a podcast you can listen to. **Renamed from NotebookLM to Gemini Notebook on 2026-07-16**, still a standalone product, now with in-notebook code execution and syncing across the Gemini app and Search. **Expert Intelligence (2026-08-27) makes purchased Play Books ebooks a first-class source**; compute-weighted usage limits took effect 2026-09-02 -- they refresh every 5 hours **but sit under an undisclosed weekly cap**, with AI Plus at 2x standard, AI Pro 4x and AI Ultra 5x or 20x above Pro (Google's help pages still read prospectively and still publish the old daily table -- no delay announced) | B | 7.8 | 8 | 7 | 9.5 | 6.5 |
| 5 | Microsoft Copilot Microsoft's answer to ChatGPT -- free GPT-4 access with Bing search built in, but it feels like a corporate product | B | 7.5 | 8 | 7 | 8 | 7 |
| 6 | Poe One subscription, every major AI model -- Quora's multi-model chatbot lets you switch between GPT-4, Claude, and more | B | 7.5 | 8 | 7 | 8 | 7 |
| 7 | Siri AI (Apple) Apple's ground-up Siri rebuild, unveiled at WWDC 2026 (June 8) -- conversational, on-screen aware, searches your personal data across apps, gets its own app with synced history. Built on Apple Foundation Models developed in collaboration with Google's Gemini. Developer betas now; public beta in July; ships this fall with iOS 27. Not in the EU (iPhone/iPad) or China at launch. | B | 7.5 | 9 | 7 | 8 | 7 |
| 8 | Character.AI AI-character roleplay chat platform -- once 200M+ monthly visitors, now in a prolonged user exodus after the 2026-02-18 'Moderatedpocalypse' mass-delete and escalating TRAIGA-compliance restrictions. The alternatives market (Janitor AI, Chai, DreamGen) is now the real story | C | 6.5 | 8 | 6 | 6 | 6 |