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 (4 selected)
Coding
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Productivity
Writing
Marketing
Hex A | Windsurf A | Symphony A | Rows A | |
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| Tagline | Modern data notebook with Magic AI assistant. | Codeium's agentic IDE. Cascade agent + strong free tier. | OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out. | Spreadsheets with AI + live integrations baked in. |
| Category | Data | Coding | Agents | Data |
| Pricing | Free + $28+/user/mo | Free + $15/mo Pro | Free (open-source) | Free + $19-$89/user/mo |
| Best for | Data teams at startups + enterprises. | Developers who want Cursor-like power for less money. | Engineering teams already using Linear + OpenAI Codex who want to stop babysitting agent sessions and instead let the issue tracker drive autonomous coding at scale. | Ops teams, marketers, anyone building dashboards from multiple sources. |
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| Kai's verdict | A-tier for data teams. S-tier if you already live in SQL + Python. | A-tier. Close second to Cursor. If $5/mo matters, start here. | Symphony is the most architecturally serious 'issue tracker as control plane' approach yet — 15K GitHub stars in weeks confirms the idea resonates — but it's still a rough, self-hosted engineering preview that demands Elixir chops and a Linear-only workflow. (Verdict pending Phi's full review.) | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. |
| Link | Open → | Open → | Open → | Open → |