Anthropic API
Anthropic (Claude) API Setup
Connect your Anthropic API key to use Claude models for content generation. Claude excels at nuanced, natural-sounding content.
Why Claude?
Anthropic’s Claude models are known for:
- Natural writing style - less “AI-sounding”
- Long-form content - handles complex, lengthy articles well
- Instruction following - excellent at matching tone and style
- Thoughtful responses - better at nuanced topics
Many Cuppa users prefer Claude for their final, published content.
Available Models
| Model | Best For | Cost | Quality |
|---|---|---|---|
| Claude Haiku 4.5 | Bulk generation, drafts | Lowest | Good |
| Claude Sonnet 4.5 | Balanced quality/cost | Medium | Excellent |
| Claude Opus 4.5 | Premium content | Higher | Best |
| Claude Opus 4.1 | Advanced tasks | Higher | Excellent |
Recommendation: Claude Sonnet 4.5 offers the best balance of quality and cost.
Step 1: Create an Anthropic Account
- Go to console.anthropic.com
- Click Sign Up
- Verify your email
- Complete account setup
Step 2: Add Payment Method
Anthropic requires a payment method before generating API keys:
- Go to Settings → Plans & Billing
- Click Add payment method
- Enter your credit card details
- Add credits ($5-20 to start)
Step 3: Generate Your API Key
- Go to console.anthropic.com/settings/keys
- Click Create Key
- Name it “Cuppa” (optional)
- Click Create Key
- Copy the key immediately - you won’t see it again!
Your key looks like: sk-ant-api03-xxxxxxxxxxxxxxxxxxxx
Step 4: Add Key to Cuppa
- Log in to app.cuppa.ai
- Go to Team Settings → API Keys
- Find the Anthropic section
- Paste your API key
- Click Save
Using Claude in Cuppa
Once connected, select Claude models when generating:
Single Generation
- Go to Create Content → Single Generation
- In the model dropdown, select Claude Sonnet 4.5 (or another Claude model)
- Continue with normal generation
Bulk Generation
- Go to Create Content → Bulk Generation
- Select a Claude model in settings
- All articles in the batch will use Claude
In Presets
- Go to Saved Presets → My Presets
- Create or edit a preset
- Set the default model to Claude
- All content using that preset will use Claude
Claude vs GPT Comparison
| Feature | Claude | GPT-4o |
|---|---|---|
| Writing style | More natural | More structured |
| Long content | Excellent | Good |
| Following instructions | Excellent | Excellent |
| Speed | Fast | Fast |
| Cost (per article) | ~$0.10-0.30 | ~$0.10-0.25 |
When to use Claude:
- Final, published content
- Brand voice matching
- Nuanced topics
- Long-form guides
When to use GPT:
- Bulk drafts
- Technical content
- Structured formats
- Cost optimization
Rate Limits
Anthropic has rate limits based on your usage tier:
| Tier | Requirement | Requests/min |
|---|---|---|
| Tier 1 | New account | 60 |
| Tier 2 | $100+ spent | 1,000 |
| Tier 3 | $500+ spent | 2,000 |
For bulk generation, Tier 2 is recommended.
Cost Management
Monitoring Usage
- Go to console.anthropic.com/settings/usage
- View current spend and limits
- Set spending limits if needed
Typical Costs
| Content Type | Model | Estimated Cost |
|---|---|---|
| Single article (2000 words) | Claude Haiku 4.5 | $0.02-0.05 |
| Single article (2000 words) | Claude Sonnet 4.5 | $0.10-0.25 |
| Bulk project (100 articles) | Claude Haiku 4.5 | $2-5 |
| Bulk project (100 articles) | Claude Sonnet 4.5 | $10-25 |
Important Note
OpenAI is still required even when using Claude. Cuppa uses GPT-4o-mini for certain internal features:
- Outline generation
- SEO metadata
- Content optimization
Make sure you have both keys connected for the best experience.
Troubleshooting
”Invalid API key”
- Check you copied the full key (starts with
sk-ant-) - Verify the key exists in Anthropic console
- Create a new key if needed
”Rate limit exceeded”
- Wait 1 minute and retry
- Check your Anthropic tier
- Consider using GPT for bulk, Claude for final edits
”Insufficient credits”
- Add more credits at console.anthropic.com
- Set up auto-recharge to avoid interruptions
”Model not available”
- Ensure you’re using a current model name
- Some older models may be deprecated
- Try Claude Sonnet 4.5 (most reliable)
FAQ
Do I need both OpenAI and Anthropic?
OpenAI is required. Anthropic is optional but recommended for higher-quality content.
Can I use Claude for everything?
You can use Claude for all main content generation. Some internal Cuppa features still require OpenAI.
Which Claude model is best for articles?
Claude Sonnet 4.5 is the sweet spot - excellent quality at reasonable cost.
Is Claude better than GPT?
For natural-sounding content, many users prefer Claude. For structured/technical content, GPT often works better. Try both!
How do I switch between models?
Select the model in the generation settings. You can also set a default in your presets.
Related Docs
- OpenAI API Setup - Required for all users
- Model Comparison - Detailed model comparison
- Presets Guide - Save your preferred model settings