Claude Sonnet 4.5 (Anthropic)
Anthropic launches Claude Sonnet 4.5, presented as its best model for code, agents and computer use, with marked progress on long, autonomous tasks.
Key points
- Anthropic launches Claude Sonnet 4.5, presented as its best model for code, agents and computer use.
- Marked progress on long and autonomous tasks.
- It raises the quality of answers and of agents based on Claude.
- It reinforces the reliability of brand information reused by the assistant.
Analysis
Sonnet 4.5 aims for the balance between performance and cost, which makes it a model likely to be widely deployed in products and agents. Its progress on long tasks and computer use brings it closer to agentic uses where AI actively consults the web, with the same stakes of content readability and accessibility.
For brand visibility, a more reliable model increases the probability that the reused information is correct, but it requires ensuring that accurate sources exist and are accessible. The overall rise in assistant quality reinforces the need for clear and up-to-date reference content.
What to do
- Verify in Claude the accuracy of the information reused about your company (activity, contact details, offering).
- Keep your pillar pages and external profiles up to date to feed accurate answers.
- Monitor the evolution of answers after the update to detect any changes in citations.
It raises the quality of Claude answers and agents even further. The reliability of brand information relayed by the assistant is reinforced.