Claude Sonnet 4.6 is the backbone of our entire platform, Humans.Team. Over 85 development sessions, Claude Code (powered by Sonnet) built 90% of our Next.js application — from Supabase database architecture and Row Level Security policies to AI journal integration, real-time notifications, PWA offline support, and a bilingual FR/EN system across 30+ pages.
What sets Sonnet 4.6 apart is its ability to hold deep context across long sessions. It remembers architectural decisions from hours ago, understands our codebase patterns, and writes production-ready TypeScript that rarely needs fixing. The reasoning is exceptional — it debugs complex issues by tracing through multiple files and connections.
We also use Claude Desktop daily for content strategy, press releases, blog articles, and bilingual copywriting. The nuance in both French and English is remarkable.
Most "AI for Excel" tools treat your spreadsheet like a text file. They rewrite cells, ignore tab dependencies, and have no idea what broke when something does.
That's the gap Claude in Excel is closing.
Most Excel models are inherited. Nobody built them from scratch, nobody fully understands them, and everyone's afraid to touch them.
Analysts and finance teams spend enormous amounts of time not building models, but deciphering them.
Tracing why a cell returns an error.
Figuring out what assumption chain drives that terminal value.
Testing a scenario without accidentally wrecking a linked tab.
Claude in Excel is built specifically for this:
Full workbook comprehension - not just the active cell, but cross-tab dependencies, formula chains, the whole thing
Scenario testing without breakage - update assumptions, see every downstream change with explanations, rollback safely
Error tracing that actually tells you why - #REF!, #VALUE!, circular references traced to the source in seconds
Build or populate - generate a draft model from scratch, or drop fresh data into an existing template while preserving all formulas
What's interesting about this launch is what it signals.
We're moving from "AI that helps you type faster" to "AI that understands your work context."
That's a different category of product.
Curious for the PH community: what's the most painful part of your Excel workflow right now?
@rohanrecommends Interesting!
This is Amazing. Can it make a pivot table?
excel spreadsheets have been a necessary evil of my budgeting processes for many years, I am glad to get the help to finally speed it up.
Are we entering a Claude prime era?
minimalist phone: creating folders
I can see that Claude is bombing the AI space, they are better each day. And since this announcement by sama, I decided to use Claude.