Anthropic rolls out second Claude 5.5 model as it builds toward IPO


FILE PHOTO: Anthropic logo is seen in this illustration taken June 11, 2026. REUTERS/Dado Ruvic/Illustration/File Photo

Sept 28 (Reuters) - Anthropic ⁠on Monday released Claude Sonnet 5.5, the second ⁠model in its Claude 5.5 family, as ‌the AI lab expands its product lineup ahead of a planned IPO.

Here are some more details:

• Sonnet 5.5 is priced at $2 ​per million input tokens and $10 per ⁠million output tokens, unchanged ⁠from its predecessor, Sonnet 5. Anthropic said the model ⁠needs ‌fewer tokens to complete the same work.

• The company said Sonnet 5.5 is a ⁠faster, lower-cost complement toClaude Opus 5.5, which ​it launched ‌last week at $4 per million input tokens and $20 ⁠per million ​output tokens.

• The model is the company's second launch amid growing debate over AI risks. Chief executive DarioAmodei ⁠earlier this month called on the ​global AI community to slow down the pace of releasing new capabilities to address safety concerns.

• The company ⁠said enterprise customers account for about 80% of its business, with clients including Salesforce,Databricks, Goldman Sachs and Novo Nordisk.

• Anthropic said the model is suited ​to everyday enterprise tasks such as ⁠coding, document creation and spreadsheet work.

• A third model, ​Haiku 5.5, designed for fast, ‌high-volume work, is due soon.

(Reporting ​by Anhata Rooprai in Bengaluru and Jeffrey Dastin in San Francisco; Editing by Tasim Zahid)

Follow us on our official WhatsApp channel for breaking news alerts and key updates!

Air Pollutant Index

Note: API is calculated based on 24hr running average of the most dominant parameter.

Highest API Readings

    Select State and Location to view the latest API reading

    Others Also Read