Opus 5.5 for demanding knowledge work
Opus is designed for extended knowledge work and can condense extensive documents into a structured draft whose key statements you then check against the originals.
Anthropic: Opus 5.5
Editorial selectionClaude
Claude remains strong at handling long documents, developing concepts and producing precise writing. Opus 5.5, Cowork, interactive connectors and Skills expand its capabilities for complex tasks and recurring workflows.
GDPR: conditionalMCP: yesFree plan: yes
Editorial review: Sep 25, 2026
Facts checked: Oct 18, 2026
Translated: Oct 18, 2026
SME score98/100
Practical value, usability and value for money, equally weighted.
- Practical value
- 98/100
- Usability
- 98/100
- Value for money
- 98/100
Best suited for
Teams that want to analyse lengthy documents carefully, develop strategic writing and structure recurring quality or knowledge workflows with Skills and connected apps.
Claude combines careful document and writing work with Cowork, interactive connectors and Skills. This lets you tackle complex tasks step by step and capture recurring quality standards in a workflow.
Limitations
When work is deeply embedded in Microsoft 365 or Google Workspace, or when live web access, spreadsheet automation and tool integrations provide the main value.
Strengths
Cowork and interactive connectors
Through approved connectors, Claude can incorporate information from services such as Gmail, Drive or Slack into a task, for example when creating a customer overview.
Anthropic: plugins and connectorsSkills for specialist knowledge and recurring processes
Skills capture recurring working instructions so that, for example, a proposal draft can be processed using the same writing rules and review criteria.
Anthropic: Skills in pluginsUse cases
Typical outputs from Claude: executive summaries, clear strategy and text drafts, reports and presentations, interactive views in connected apps and reusable Skills for established workflows.
Using it in your business
Language
DE ✅EN ✅Details ↓
Facts checked: Oct 18, 2026
MCP
yesDetails ↓
GDPR
conditionalDetails ↓
We found a data processing agreement from the vendor. Check the contract to see which plan it covers and what transfers to third countries are involved in your intended use.
DPA: We found a DPA from the vendor. Check whether the contract covers your plan and intended use.
Data storage: In the sources reviewed, we could not find a clear statement confirming that storage and processing take place exclusively in Europe.
Facts checked: Oct 5, 2026
Pricing
20 USDDetails ↓
Free plan: yes
An ongoing free plan is available, subject to usage limits.
Facts checked: Oct 5, 2026
A practical first project
Turn a strategy paper into an executive summary, a version for decision-makers and a prioritised action plan. For recurring analyses, save the review criteria and output format as a Skill.
Analyse this strategy paper using our agreed quality Skill. Create an executive summary, flag unsupported assumptions and develop a prioritised action plan. For important statements, cite the relevant passage in the original.
Two ideas for your working day
Check proposal drafts against approved facts
Add your service description and references to the project knowledge. Ask it to review a proposal draft with this instruction: “Flag every commitment that these documents do not support.” This gives you a focused checklist for scope, deadlines and promised results.
Anthropic: project knowledgeAddress two audiences using the same facts
Use the same project knowledge for two separate drafts: a short email to management and a technical explanation for the future users. Specify each audience's role, prior knowledge and desired decision. Then compare whether both versions make the same product commitments.
Anthropic: project knowledge
Sources: Oct 18, 2026
What other sources report
TechRadar particularly highlights Claude for long-form content, structural work and adapting to an existing writing voice.
TechRadar editorial teamTechRadar · Apr 28, 2026
If there is an overall winner, it is Claude 4.6 Sonnet. It consistently worked like a true strategist: methodical, psychologically perceptive and always focused on long-term results rather than quick wins.
Amanda CaswellTom's Guide · Feb 18, 2026
Compare this tool
Frequently asked questions
What is Claude suitable for?
Teams that want to analyse lengthy documents carefully, develop strategic writing and structure recurring quality or knowledge workflows with Skills and connected apps.
When is Claude less suitable?
When work is deeply embedded in Microsoft 365 or Google Workspace, or when live web access, spreadsheet automation and tool integrations provide the main value.
What features does Claude offer?
Opus 5.5 for demanding knowledge work; Cowork and interactive connectors; Skills for specialist knowledge and recurring processes
How should I get started with Claude?
Turn a strategy paper into an executive summary, a version for decision-makers and a prioritised action plan. For recurring analyses, save the review criteria and output format as a Skill.
How much does Claude cost?
Free plan · from 20 USD/month. See the pricing section on this page for details and the documented review date.