Claude Sonnet 4.6 at a glance
Sonnet 4.6 upgrades coding, computer use, long-context reasoning and agent planning, adds a 1M-token context window in beta, becomes the default for Free and Pro users, and keeps pricing from $3/$15 per million tokens.
What changed with Claude Sonnet 4.6
On February 17, 2026, Anthropic released Claude Sonnet 4.6, a broad upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work and design. It adds a 1M-token context window in beta and became the default model for Free and Pro users in claude.ai and Claude Cowork. Pricing stays the same as Sonnet 4.5, starting at $3 input and $15 output per million tokens.
Anthropic says early-access developers preferred Sonnet 4.6 to Sonnet 4.5 by a wide margin and often to Opus 4.5. It describes a major improvement in computer use over earlier Sonnet models, measured on OSWorld-Verified, and much better resistance to prompt injection than Sonnet 4.5, while noting the model still trails the most skilled people at operating a computer.
Claude Sonnet 4.6 benchmarks and pricing
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Input price per 1M tokens (starting)as of · Source for Input price per 1M tokens (starting): anthropic.com (opens in a new tab)
- $3.00
- Output price per 1M tokens (starting)as of · Source for Output price per 1M tokens (starting): anthropic.com (opens in a new tab)
- $15.00
- Context window (beta)as of · Source for Context window (beta): anthropic.com (opens in a new tab)
- 1M tokens (beta)
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Where to compare Claude Sonnet 4.6
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
Why Claude Sonnet 4.6 matters for businesses
For businesses, Sonnet 4.6 puts work that used to need an Opus-class model, such as filling multi-step web forms or navigating spreadsheets, at a lower price point. It is a reasonable default for high-volume agents and automations, with Opus kept for the hardest tasks.
Put it to work: AI Agents
Sources for this story
- Introducing Sonnet 4.6 (opens in a new tab)Official
Anthropic · anthropic.com
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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- #computer-use
