Managing Long Conversations and Usage
How you structure your conversations directly impacts your credit usage. The single most effective way to maximize your plan's value is knowing when to continue a thread versus when to start fresh.
Good news: Automatic conversation compaction is now live for Think mode (Claude Opus 4.6). Think mode conversations can now continue indefinitely without hitting token limits—the system automatically summarizes earlier messages in the background when approaching ~150,000 tokens. See the Product Changelog for details.
Why Long Conversations Cost More
Every time you send a message, the AI reviews your entire conversation history to maintain context and provide relevant answers. In a 3-message conversation, this is minimal. In a 50-message thread, the AI processes significantly more information—like photocopying an entire binder every time you add one page.
This isn't a flaw; it's how conversation context works. But it means very long threads consume credits much faster than short ones.
A single message in a 50+ message conversation can use 5-10 times more credits than the same message in a fresh conversation. For Think mode users: Automatic compaction now reduces this impact dramatically by summarizing older messages while preserving context.
Think Mode: Indefinite Conversations
Think mode (Claude Opus 4.6) now supports indefinite conversation length through automatic compaction. When your conversation approaches the ~150,000 token threshold, the system automatically summarizes earlier messages in the background, allowing you to continue seamlessly.
What happens:
You'll see a brief "Compacting our conversation..." indicator (amber progress bar)
The process takes a few seconds
Your conversation resumes with full context preserved
No need to start fresh or lose context
Best for: Complex, iterative compliance work like comprehensive gap analyses, multi-framework mappings, or detailed policy reviews requiring extended context.
When to Continue vs. When to Start Fresh
Continue the Same Conversation When:
You need the AI to remember specific context from the last 2-5 messages
You're refining a document through multiple iterations
You're working through a multi-step process (e.g., gap analysis → recommendations → implementation plan)
You're in Think mode and working on complex analysis (indefinite conversation supported)
You're asking follow-up questions that directly reference previous answers
Start a New Conversation When:
You're switching to a completely different topic or framework
You're using Fast mode and the thread has 20+ messages
You don't need the AI to remember earlier context
You've finished one task and are starting another
You're uploading a new large document for unrelated analysis
The conversation has gone off-track or accumulated irrelevant history
Best practice: Treat conversations like focused work sessions. One conversation = one compliance task. For Think mode, you can continue extended analyses indefinitely. For Fast mode, start fresh after 15-20 messages.
Practical Examples
Example 1: Policy Development
❌ Inefficient approach:
Message 1: "Create an ISO 27001 access control policy"
Messages 2-10: Refine the policy through iterations
Message 11: "Now create an incident response policy"
Messages 12-20: Refine incident response policy
Message 21: "Now create a risk assessment template"
Messages 22-35: Continue working... (credits consumed rapidly in Fast mode)
✅ Efficient approach:
Conversation 1 (Access Control): Draft and refine access control policy (10 messages)
Conversation 2 (Incident Response): Start fresh, draft and refine incident response (10 messages)
Conversation 3 (Risk Assessment): Start fresh, create risk template (8 messages)
Same work, far fewer credits consumed.
Example 2: Gap Analysis
✅ Good use of one conversation (Think mode recommended):
Upload your current policy document
Request gap analysis against ISO 27001
Ask clarifying questions about specific gaps (3-5 messages)
Request prioritized remediation recommendations
Continue with detailed control-by-control analysis (Think mode handles indefinite length)
This benefits from continuous context. The AI remembers the uploaded document and previous findings.
❌ Then don't continue with: "Now create a policy for the first gap" unless you're doing comprehensive implementation work in Think mode. For Fast mode, start a new conversation for implementation.
Example 3: Multi-Client Consulting
Use Workspaces + conversations per task:
Client A Workspace: Separate conversations for risk assessment, policy review, audit prep (Think mode for comprehensive work)
Client B Workspace: Separate conversations for SOC 2 gap analysis, control implementation, testing
Each task gets a focused conversation. Workspaces keep clients separate. See Managing Multi-Client Projects with Workspaces.
File Uploads and Conversation Strategy
Large documents consume extra credits, especially in long conversations. Follow these guidelines:
Upload files in fresh conversations whenever possible
Complete all analysis and questions about that document in one focused thread
If you need to upload another document, start a new conversation unless the files are directly related
For Think mode: Extended file analysis is supported with automatic compaction
If you're doing comprehensive document analysis (e.g., reviewing 5 policies against ISO 27001), Think mode now supports indefinite analysis in a single conversation. For Fast mode, consider uploading each policy in a separate conversation.
Recognizing When a Conversation Is Too Long (Fast Mode)
Watch for these signs in Fast mode:
You're past 15-20 messages in one thread
You've switched topics from your original question
You're hitting usage limits faster than expected
You have to scroll significantly to see the beginning of the conversation
When you notice these patterns, finish your current task and start a new conversation for the next one. Or switch to Think mode for extended work.
Model Selection and Conversation Length
Think Mode (Claude Opus 4.6): Automatic compaction enables indefinite conversations—best for complex, extended compliance work
Fast Mode (Claude Sonnet 4): Works well for quick, focused conversations; start fresh after 15-20 messages
Other models: Standard conversation length limits apply; structure conversations accordingly
For long, iterative compliance tasks, Think mode now provides the best value through automatic context management.
Quick Tips for Efficient Usage
Use Think mode for extended work—automatic compaction enables indefinite conversations
One task, one conversation. Don't combine multiple unrelated compliance questions in one thread.
Fast mode: start fresh after 15-20 messages
Upload large files in new conversations, not in existing long threads (unless using Think mode)
Use Workspaces to organize, not long conversation threads.
Ask complete questions upfront instead of spreading context across many messages.
Starting new conversations doesn't mean you lose old work. All conversations remain accessible in your history based on your plan's data retention settings. Fresh threads optimize credit usage for Fast mode; Think mode handles extended conversations automatically.
Impact on Different Plans
Free Plan: Conversation length management is critical. Your limited credits per session mean long threads will hit your limit quickly. Keep conversations short and focused, or use Think mode strategically for complex work.
Plus Plan: Think mode access gives you indefinite conversation length for complex analysis. Higher credit allocation provides flexibility for both modes.
Pro Unlimited (coming soon): Full access to Think mode's automatic compaction for unlimited extended conversations.
Related Resources
Starting Your First Conversation - Best practices for effective messaging
Managing Multi-Client Projects with Workspaces - Organize work efficiently
Conversation Too Long Error - Understanding token limits and compaction
Subscription Plans and Pricing - Plan comparison and limits