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Compare AI tools

Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.

Pick tools (2 selected)

Chatbots

+ Claude + ChatGPT + Gemini + Grok + DeepSeek + Qwen + Le Chat (Mistral)

Research

+ Perplexity + NotebookLM + Elicit + Genspark

Coding

+ Cursor + Claude Code + Windsurf + GitHub Copilot + Aider + Cline + Bolt.new (StackBlitz)+ Replit Agent

Image

+ Midjourney + Ideogram + Flux (Black Forest Labs)+ DALL-E 3 + Recraft + Leonardo.ai + Adobe Firefly

Video

+ Runway + Kling + Sora + Pika + Luma Dream Machine + Google Veo + HeyGen + Synthesia + Descript

Voice

+ ElevenLabs + OpenAI Voice / Realtime + Cartesia + Play.ht + Hume AI

Meetings

+ Granola + Otter.ai + Fireflies + Fathom

Design

+ v0 + Lovable + Figma AI + Framer + Galileo AI

Productivity

+ Gamma + Raycast AI + Reflect + Taskade

Audio

+ Suno + Udio + Stable Audio

Writing

+ Sudowrite + Lex + Grammarly

Agents

+ Manus + Devin + ChatGPT Operator + Claude Agent SDK

Dev Platform

✓ OpenRouter + Replicate + Groq + Hugging Face + Ollama

Data

+ Julius + Rows + Hex

Marketing

+ Jasper + Copy.ai ✓ Writesonic

Education

+ Khanmigo + Duolingo Max + MagicSchool

	OpenRouter S	Writesonic B
Tagline	One API, every model. Pay-as-you-go, no subscriptions.	SEO-first AI writer. Optimized for ranking content.
Category	Dev Platform	Marketing
Pricing	Pay per token — model-dependent	Free + $15-$99/mo
Best for	Developers experimenting across models. Apps that want fallback logic.	Content marketers churning out SEO articles.
Strengths	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	SEO built-in (Surfer integration) Article generator for long-form Chatsonic for research
Weaknesses	Slight markup over direct API Some provider features not exposed	Output quality behind Claude for polish SEO automation can produce generic content
Kai's verdict	S-tier for model-shopping. I use this for every prototype before committing.	B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic.
Link	Open →	Open →