Cohere - Coral

📋 Service Information

Provider: Cohere
Service Type: Chatbot (Coral Web Interface)
Access URL: https://coral.cohere.com or https://chat.cohere.com
Free Tier: Completely Free, no usage limits

🎯 Service Overview

Coral is Cohere’s free AI chatbot, particularly excelling at RAG (Retrieval Augmented Generation), capable of answering questions based on uploaded documents and automatically citing information sources.

Key Advantages:

• 🆓 Completely Free - No usage limits
• 📚 RAG Expert - Answer questions based on documents
• 📎 Document Upload - Support PDF, Word, TXT, etc.
• 🔗 Source Citations - Automatically mark information sources
• 🌍 Multilingual - Support 100+ languages
• 💬 Multi-turn Conversations - Maintain context

🚀 How to Use

Prerequisites

• ✅ Registered Cohere account (email or Google)
• ❌ No credit card required

For detailed registration steps, see: Cohere Registration Guide

Usage Steps

Step 1: Access Coral

1. Visit: https://coral.cohere.com
2. Or visit: https://chat.cohere.com
3. Login with your account

Step 2: Start Conversation

1. Enter your question in the input box
2. Click send or press Enter
3. Coral will answer and mark information sources

🎨 Feature Highlights

1. Basic Conversation

Supported Features:

• Multi-turn conversation, automatically maintains context
• 100+ language support
• Quick response

2. RAG (Retrieval Augmented Generation)

Features:

• Answer questions based on uploaded documents
• Automatically cite information sources
• Reduce model hallucination
• Improve answer accuracy

Usage:

1. Click 📎 icon on the left of input box
2. Upload documents (PDF, Word, TXT, etc.)
3. Ask questions about the documents
4. Coral answers based on document content

3. Document Upload

Supported Formats:

• 📄 PDF
• 📝 Word (DOC, DOCX)
• 📄 TXT
• Other text formats

Application Scenarios:

• Analyze academic papers
• Summarize business reports
• Understand technical documentation
• Extract key information

4. Source Citations

Features:

• Answers automatically marked with sources
• Click citation numbers to view original text
• Ensure information traceability
• Verify answer accuracy

Example:

User: What is the core contribution of this paper?

Coral: According to the paper, core contributions include:
1. Proposed new architecture[1]
2. Improved benchmark by 20%[2]
3. Reduced computational cost[3]

[1] Page 3, paragraph 2
[2] Table 2 experimental results
[3] Page 5 conclusion section

5. Multilingual Support

Supported Languages:

• 100+ languages
• Excellent Chinese performance
• Cross-language understanding
• Automatic language detection

🔢 Usage Limits

Free Quotas

Completely free, no usage limits! 🎉

💡 Usage Tips

✅ Best Practices

1. Fully Utilize RAG

   • Upload relevant documents
   • Let Coral answer based on documents
   • Check citation sources

2. Multi-Document Analysis

   • Can upload multiple documents
   • Coral will analyze comprehensively
   • Automatically integrate information

3. Verify Answers

   • Check citation sources
   • Click to view original text
   • Ensure accuracy

4. Optimize Questions

   • Ask clear and specific questions
   • Provide necessary background
   • Specify expected output format

⚠️ Precautions

1. Document Quality

   • Ensure documents are clear and readable
   • PDF preferably text version not scanned
   • Document content relevant

2. Privacy Protection

   • Don’t upload sensitive documents
   • Cohere promises data security
   • Handle private information cautiously

3. Network Requirements

   • Needs stable network connection
   • Document upload may take time
   • Good international access speed

🔧 Common Issues

1. Does Coral Have Usage Limits?

Answer:

• Completely free
• No message count limit
• No document upload limit

2. What Document Formats Are Supported?

Supported:

• PDF
• Word (DOC, DOCX)
• TXT
• Other text formats

3. What If Document Upload Fails?

Check:

• Whether file format is supported
• Whether file is corrupted
• Whether network connection is stable

4. How to View Conversation History?

Method:

• Left sidebar shows conversation history
• Click to restore
• Automatically saved

📚 Related Resources

Documentation and Tutorials

• Cohere Complete Guide
• API Service Guide
• Official Documentation

🌟 Advanced Usage

Academic Research Assistant

Application:

1. Upload PDF paper
2. Ask about research methods
3. Summarize core contributions
4. View citation sources

Business Analysis Assistant

Application:

1. Upload business reports
2. Extract key data
3. Analyze market trends
4. Generate summary reports

Technical Documentation Assistant

Application:

1. Upload technical documentation
2. Quickly find information
3. Understand complex concepts
4. Extract code examples

Service Provider: Cohere