Claude Sonnet 4.6
Sonnet 4.6 is the default Claude model: 1M-token context (beta), upgraded coding and computer-use, plus human-level performance on tasks like spreadsheet navigation.
Anthropic · Claude
Claude Sonnet 4.6
The best speed-to-intelligence ratio in the Claude lineup
Sonnet 4.6 is the default Claude model: 1M-token context (beta), upgraded coding and computer-use, plus human-level performance on tasks like spreadsheet navigation.
Key features
Claude Sonnet 4.6 · AI Models
Context window
1M tokens (beta)
Max output
64K tokens
Released
February 17, 2026
Pricing
$3 input / $15 output per 1M tokens
Key features
- Full upgrade across coding, computer use and agent planning.
- Human-level performance on spreadsheet and form workflows.
- 1M-token context window in beta, 64K max output.
- Same pricing as Sonnet 4.5 with materially better quality.
Best for
Use Sonnet 4.6 as your default daily-driver Claude model — the sweet spot of cost, latency and intelligence for most product workloads.
Frequently Asked Questions
Is Sonnet 4.6 free on Claude.ai?
Yes — Sonnet 4.6 is the default model on Claude.ai for both Free and Pro plans.
Open Chat
Sonnet 4.6 is the default Claude model: 1M-token context (beta), upgraded coding and computer-use, plus human-level performance on tasks like spreadsheet navigation.