Claude
Claude API
Checked on 2026-10-10 in the developer documentation.
How to use Claude
What is Claude?
Claude is an AI assistant created by Anthropic that competes with ChatGPT. It excels at reasoning, analysis, and careful problem-solving. The key difference from ChatGPT is Claude's training approach: it's designed to be more honest about limitations and less prone to confidently incorrect answers (known as hallucinations).
How it fits into B2B growth
Growth teams use Claude for high-stakes analysis, research synthesis, and strategic thinking. It's particularly valuable when you need to process large amounts of customer data, analyse competitive positioning, or draft customer-facing content where accuracy is non-negotiable. Claude's longer context window (ability to read more text at once) makes it ideal for analysing full research reports or customer interviews in one conversation.
Common B2B use cases
Research analysis: Feed Claude customer interviews, survey responses, or support tickets and ask it to identify themes, pain points, and opportunities.
Competitive analysis: Have Claude synthesise competitor websites, pricing pages, and messaging to find positioning gaps.
Strategic thinking: Work through complex decisions, trade-offs, and scenarios with Claude as a thinking partner.
Content review: Ask Claude to evaluate marketing copy, customer communications, or documentation for tone, clarity, and persuasiveness.
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Technical documentation: Explain code, architecture decisions, or system design to Claude and ask for summary or alternative approaches.
How to use Claude effectively
Provide context. Claude's strength is working with long-form information. Instead of asking 'What should our messaging be?', paste in customer interview transcripts, competitive analysis, and your current positioning, then ask Claude to identify messaging themes and gaps.
Use it for iterative work. Ask follow-up questions, challenge Claude's reasoning, and refine ideas together. This is where AI provides the most value.
Trust its honesty about limits. When Claude says 'I don't have enough information to decide', or 'This claim needs verification', it usually means exactly that.
Expect good first drafts. Like ChatGPT, Claude is strongest as a starting point. Edit, verify, and apply your domain knowledge before publishing.
Pricing and access
Claude is available through Anthropic's website, Amazon Bedrock, and other platforms. Unlike ChatGPT's simple subscription model, pricing varies by access method. The Claude 3 family offers three capability levels: Opus (most capable, good for complex reasoning), Sonnet (balanced), and Haiku (fastest, for simple tasks).
When to choose Claude
Use Claude when accuracy and reasoning depth matter. Choose ChatGPT when you need quick output and can fact-check afterwards. For research analysis, strategic thinking, and customer-facing work, Claude is often the better choice. For brainstorming and quick drafts, ChatGPT is faster.
Limitations
Like ChatGPT, Claude has a training cutoff and doesn't know recent events. It also requires verification for factual claims. Response times can be slower than ChatGPT, particularly on simple tasks. Some teams use both: ChatGPT for fast brainstorming and Claude for careful analysis.
Alternatives
ChatGPT (faster, wider awareness), Google Gemini, OpenAI's API for developers, specialized models for specific domains.
How to automate Claude
Native integrations
Claude has connectors for apps such as Slack, Gmail, Salesforce and databases. Start with where your knowledge lives, such as your documents or your CRM, so you can ask questions about live data instead of pasting exports. Connectors act with your permissions, so check what each one can reach.
API and webhooks
Anthropic has a developer API, documented at platform.claude.com. Use it when you want a task to run without a chat window, for example summarising every new support ticket or classifying inbound leads. See Anthropic API for that side.
MCP server
Claude is an MCP client, not a server: it connects to other tools' MCP servers. I found no official MCP server for the Claude assistant itself. The practical move is to connect the MCP servers of your own tools, such as your CRM or your database, and ask questions across them.
No-code automation
Use the API through Zapier, Make or n8n to put Claude inside a workflow. A simple flow: when a new lead arrives, send the form text and the company site to Claude, get back a short fit summary and add it to the CRM record for a person to review.