This week in Anthropic

Anthropic releases Sonnet 5.5 at unchanged token prices

Release: Claude Sonnet 5.5 launched on September 28.
API pricing: $2 per million input tokens and $10 per million output tokens.
Governance: Anthropic says the model receives stronger cybersecurity safeguards than previous Sonnet releases.

Anthropic launched Claude Sonnet 5.5 on September 28. The company claims faster execution and lower per-task costs, making workload-level testing the next step for Czech enterprises considering an upgrade.

Sonnet 5.5 targets faster work without changing token prices

Anthropic released Claude Sonnet 5.5 as the second model in its Claude 5.5 family. The model retains Sonnet 5’s headline API prices of $2 per million input tokens and $10 per million output tokens.

Test Anthropic’s claim of more than 30% faster execution against Sonnet 5 on your Czech-language document and coding workloads before changing production routing.
Validate Anthropic’s claim of up to 30% lower cost per task by measuring total spend per accepted output rather than comparing token prices alone.
Include cybersecurity workflows in upgrade acceptance tests because Anthropic says Sonnet 5.5 receives stronger cyber safeguards than earlier Sonnet releases.

Source — Anthropic Newsroom ClaudeEnterprise AI