Anthropic has released Claude Sonnet 4.5. According to Amazon Web Services, this is Anthropic’s “most intelligent model”. [AWS] It is a major update that positions the large language model as one of the most capable AI assistants for development, automation and agentic tasks. We will explore the key features and the benefits it delivers. [The News Stack]
Claude Sonnet 4.5 is designed to be the smartest model in the Claude 4 family, whilst remaining efficient for everyday use. Here are the key business use cases:
Knowledge work and analysis
- Complex research and data analysis tasks
- Synthesising information from multiple sources
- Creating reports, business documents, presentations
- Strategic planning and business intelligence
Software development
- Writing and reviewing code
- Debugging and optimization
- Architecture design and technical documentation
- API integration and automation scripts
Customer operations
- Sophisticated customer support and query resolution
- Handling complex, multi-step customer enquiries
- Personalising customer communication at scale
- Creating knowledge base content
Content creation
- Marketing copy and campaign materials
- Technical writing and documentation
- Business communications and proposals
- SEO-optimised content
Data processing
- Analysing structured and unstructured data
- Extracting insights from documents, spreadsheets, databases
- Data transformation and formatting
- Creating visualisations and dashboards
Workflow automation
- Automating repetitive business processes
- Document processing and classification
- Email triage and drafting responses
- Task planning and project management support
New features of Claude Sonnet 4.5
1. Extended autonomous runtime (≈ 30 hours)
Claude 4.5 can sustain autonomous multi-step tasks for up to 30 hours, according to Anthropic. This is a significant improvement over prior limits (e.g. seven hours in earlier models), enabling longer, uninterrupted AI thinking for coding, research or agentic processes. [Ars Technica]
2. Better instruction following & code refactoring
Claude 4.5 improves on directive compliance and has enhanced abilities to refactor and manage existing codebases. In benchmark results, it scores ~77.2% (82% with parallel compute) on real GitHub pull request tasks. The New Stack
3. Improved ‘computer use’ & tool handling
The new model now leads computer-interaction benchmarks (OSWorld) with a success rate of circa 61%, significantly better than previous models. Claude can execute code, create files (spreadsheets, slides, documents) within the chat interface and seamlessly use tools. [Techcrunch]
4. Memory, context & token optimisations
Claude 4.5 includes automatic performance optimisations to improve throughput. It also handles extended context and memory more robustly, which benefits long conversations or workflows that rely on continuity. [AWS]
5. Integrations & deployability
Claude 4.5 is available via multiple platforms. These include Anthropic’s developer stack, Amazon Bedrock (with AgentCore integration) and Google’s cloud offerings. It is also integrated in GitHub Copilot for code suggestions and agentic use inside VS Code, GitHub, and CLI contexts. The GitHub blog
6. Unchanged pricing & usage flexibility
Anthropic retains the same pricing as Sonnet 4: input at $3 per million tokens, output at $15 per million tokens. For Team and Enterprise plan users, a new ‘extra usage”’ setting allows the purchase of more capacity beyond the base limit. Claude Support
Benefits for users & businesses
- Productivity gains: by having the ability to handle long, multi-step tasks autonomously, Claude 4.5 can reduce manual hand-offs and context switching.
- Developer support: it becomes more practical to let the AI build, improve or maintain code with fewer interruptions.
- Reliable agents: better memory and sustained focus makes it possible to design more capable agents or assistants for business requirements.
- Cost stability: retaining the same pricing ensures users don’t face surprise price increases.
- Flexible deployment: support across cloud & tool ecosystems lets organisations integrate it within existing stacks.
If you are interested in advertising within this website, visit the Contact page.
