Anthropic
Anthropic provides the Claude series of models, known for their helpful, harmless, and honest behavior.
Setup
- Get an API key from console.anthropic.com
- In Alma, go to Settings → Providers → Add Provider
- Select Anthropic as the provider type
- Enter your API key
- Click Save
Available Models
| Model | Description | Context Window |
|---|---|---|
| claude-sonnet-4 | Best balance of intelligence and speed | 200K |
| claude-haiku-4-5 | Fast and cost-effective | 200K |
| claude-opus-4 | Most capable Claude model | 200K |
Configuration Options
Base URL
Leave empty for official Anthropic API. Custom URLs can be used for proxy services.
Features
Extended Thinking
Claude supports extended thinking (reasoning) for complex problems:
- Enable Extended Thinking in the chat toolbar
- Select effort level: Low, Medium, or High
- Claude will show its reasoning process in the response
Vision
All Claude 3 models support image inputs. Attach images for:
- Document analysis
- Image description
- Visual reasoning
Tools
Claude fully supports Alma's tool system with excellent tool-use capabilities.
Long Context
Claude's 200K context window allows for:
- Analyzing long documents
- Extended conversations
- Large codebases
Anthropic-Specific Features
System Prompts
Claude pays special attention to system prompts. Use them to:
- Set the assistant's persona
- Define output formats
- Establish guidelines
Prompt Caching
Alma supports prompt caching for Claude, reducing costs for repeated context.
Pricing
See Anthropic Pricing for current rates.
Troubleshooting
"Authentication Error"
- Verify your API key at console.anthropic.com
- Ensure the key is active and has remaining credits
"Content Filtered"
- Claude has strong content filters
- Rephrase your request to be more specific
- Avoid potentially harmful requests
"Context Length Exceeded"
- Your conversation is too long
- Start a new chat or use context compaction