Claude Sonnet 5.5: over 30% faster, and strongest at docs, slides and spreadsheets
Anthropic’s second Claude 5.5 model costs $2 in and $10 out per million tokens and, Anthropic says, does most work for up to 30% less.
At a glance
- What
- Claude Sonnet 5.5, from Anthropic
- Price
- $2 per million input tokens, $10 per million output tokens
- Speed
- Output over 30% faster than Sonnet 5
- Best at
- Everyday tasks, bug fixes, documents, slides, spreadsheets
- Where
- Claude Platform, AWS, Google Cloud, Microsoft’s cloud
- Released
- September 28, 2026
Why it matters
Content and reporting pipelines get faster runs, and it’s tuned for the polished documents and decks marketing teams ship.
AI NewsClaude 5.5Claude Sonnet 5.5$2 / $10 per M tokens30%+ fasterDocs, slides, sheetsSep 28, 2026esy.com/newsAnthropic has released Claude Sonnet 5.5, the second model in the Claude 5.5 family. It writes its output more than 30% faster than Sonnet 5 and, Anthropic says, needs fewer tokens for the same work, so most tasks cost up to 30% less.
Anthropic says it’s strongest at well-scoped everyday work, fixing bugs, and polished documents, slides and spreadsheets. It’s on the Claude Platform as claude-sonnet-5-5, and on AWS, Google Cloud and Microsoft’s cloud.
What to check
- If you run content or reporting jobs on Sonnet 5, compare a few on Sonnet 5.5 for speed and cost.
Questions
How much does Claude Sonnet 5.5 cost?
$2 per million input tokens and $10 per million output tokens.
What is Claude Sonnet 5.5 best at?
Anthropic says well-scoped everyday tasks, bug fixes, and documents, slides and spreadsheets.
Sources
AnthropicSeptember 28, 2026
Introducing Claude Sonnet 5.5Backs up: Prices, speed, what it’s best at and where it’s available
Written in our own words from these sources. AI News is independent: the companies we cover don’t sponsor, review or endorse it. Spotted a mistake? See our editorial standards or email zev@esy.com.
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