Strengths
What it's the best tool for
- 1M token context in beta — whole projects at once
- Best-in-class computer use and multi-tab agents
- Top coding model in the Sonnet line
- Reliable instruction following and tone consistency
- Balanced tier among flagship models
Limitations
When to reach for something else
- No native image or video generation
- Soft content filter on borderline topics
- Knowledge cutoff mid-2025, no built-in web
- Latency grows on very long inputs
Sample output
How Claude Sonnet 4.6 responds
Prompt
Act as a senior fullstack dev. Review this Next.js repo, flag hydration issues and propose a structure for migrating to the app router.
Claude Sonnet 4.6
Reviewed 62 components.
Critical: 4 client components touch window during render — hydration crashes.
Medium: dynamic imports without dynamic() in 9 spots.
App router migration plan: split layouts, move data fetching into server components.
Where teams use it
Four scenarios where it pays for itself
01
Agents and automation
Computer use + multi-step planning
02
Production-grade coding
Refactors and migrations on 1M context
03
Web form filling
Best-in-class computer use
04
Long research
Large PDFs and virtual data rooms
About model
More about Claude Sonnet 4.6
Claude Sonnet 4.6 Online — Anthropic's Flagship Agent
Claude Sonnet 4.6 is Anthropic's top workhorse model, released February 17, 2026. Up to 1M token context in beta, best-in-class computer use and agentic coding. Available on NetRoom with no VPN needed.
Where it wins
Project refactors, multi-step agents, multi-tab form filling, heavy-reasoning tasks. Pricing sits noticeably below Opus while delivering far more capability than Haiku.
When to pick it
If you need an agent that actually clicks UIs, edits code across dozens of files and holds whole-project context — Sonnet 4.6 is the one.
How to start
Open NetRoom, select Claude Sonnet 4.6, top up in rubles. No subscription, pay per token used.
Try Claude Sonnet 4.6
right now
Free access to basic models. No card, no obligations.