Model Limits

Context Allocation:
├── Total capacity: 128,000 tokens
├── System prompts: ~2,000 tokens
├── User content: ~120,000 tokens
├── Response buffer: ~6,000 tokens
└── Safety margin: Variable

Practical Usage:
├── Large documents: ~90 pages
├── Code files: ~50,000 lines
├── Conversation: ~300 exchanges
└── Mixed content: Balanced allocation
```text

### Claude 4 Sonnet
**Maximum Context: 1,000,000 tokens**

```text
Context Allocation:
├── Total capacity: 1,000,000 tokens
├── System prompts: ~3,000 tokens
├── User content: ~990,000 tokens
├── Response buffer: ~7,000 tokens
└── Safety margin: Variable

Practical Usage:
├── Large documents: ~750 pages
├── Code files: ~75,000+ lines (entire codebases)
├── Conversation: ~2,500 exchanges
└── Mixed content: Massive allocation for complex workflows
```text

### Claude 3.5 Sonnet
**Maximum Context: 200,000 tokens**

```text
Context Allocation:
├── Total capacity: 200,000 tokens
├── System prompts: ~3,000 tokens
├── User content: ~190,000 tokens
├── Response buffer: ~7,000 tokens
└── Safety margin: Variable

Practical Usage:
├── Large documents: ~150 pages
├── Code files: ~80,000 lines
├── Conversation: ~500 exchanges
└── Mixed content: Generous allocation
```text

### o1-preview
**Maximum Context: 128,000 tokens**

```text
Context Allocation:
├── Total capacity: 128,000 tokens
├── Reasoning space: ~20,000 tokens
├── User content: ~100,000 tokens
├── Response buffer: ~8,000 tokens
└── Internal processing: Variable

Practical Usage:
├── Complex problems: ~75 pages
├── Mathematical content: ~40,000 lines
├── Deep analysis: ~200 exchanges
└── Problem-solving: Optimized for reasoning
```text

### GPT-4o mini
**Maximum Context: 128,000 tokens**

```text
Context Allocation:
├── Total capacity: 128,000 tokens
├── System prompts: ~1,500 tokens
├── User content: ~120,000 tokens
├── Response buffer: ~6,500 tokens
└── Efficiency focus: Fast processing

Practical Usage:
├── Quick tasks: ~90 pages
├── Simple code: ~50,000 lines
├── Basic chat: ~400 exchanges
└── Cost-effective: High efficiency
```text

## Response Length Limits

### Maximum Response Sizes

**By Model:**
```text
GPT-4o:
├── Max response: 4,096 tokens
├── Typical response: 1,000-2,000 tokens
├── Streaming: Real-time delivery
└── Quality: High coherence maintained

Claude 3.5 Sonnet:
├── Max response: 4,096 tokens
├── Typical response: 1,500-3,000 tokens
├── Streaming: Real-time delivery
└── Quality: Excellent for long-form content

o1-preview:
├── Max response: 32,768 tokens
├── Typical response: 2,000-8,000 tokens
├── Streaming: Not available (reasoning mode)
└── Quality: Highly detailed responses

GPT-4o mini:
├── Max response: 4,096 tokens
├── Typical response: 500-1,500 tokens
├── Streaming: Real-time delivery
└── Quality: Good for concise tasks
```text

## Processing Timeouts

### Request Timeouts by Model

**Standard Timeouts:**
```text
GPT-4o:
├── Simple queries: 30 seconds
├── Complex analysis: 2 minutes
├── Large file processing: 5 minutes
└── Multi-step tasks: 10 minutes

Claude 3.5 Sonnet:
├── Simple queries: 30 seconds
├── Complex analysis: 3 minutes
├── Large file processing: 7 minutes
└── Multi-step tasks: 12 minutes

o1-preview:
├── Simple reasoning: 2 minutes
├── Complex problems: 10 minutes
├── Mathematical proofs: 15 minutes
└── Deep analysis: 20 minutes

GPT-4o mini:
├── Simple queries: 15 seconds
├── Basic analysis: 1 minute
├── File processing: 3 minutes
└── Quick tasks: 5 minutes
```text

### Timeout Handling

**Automatic Retries:**
```text
Retry Logic:
├── Network timeouts: 3 automatic retries
├── Model timeouts: 2 automatic retries
├── Processing errors: 1 automatic retry
└── Rate limit errors: Exponential backoff

Graceful Degradation:
├── Model fallback: Switch to faster model
├── Content chunking: Break large requests
├── Streaming responses: Partial results
└── Error recovery: Meaningful error messages
```text

## Concurrent Request Limits

### Simultaneous Requests by Plan

**Request Concurrency:**
```text
Free Plan:
├── GPT-4o mini: 1 concurrent request
├── Other models: Not available
├── Queue position: Standard priority
└── Wait time: 2-5 minutes during peak

Pro Plan:
├── All models: 3 concurrent requests
├── Priority processing: Medium priority
├── Queue position: Ahead of free users
└── Wait time: 30 seconds-2 minutes

Team Plan:
├── All models: 10 concurrent requests
├── Priority processing: High priority
├── Queue position: Dedicated lanes
└── Wait time: 5-30 seconds

Enterprise:
├── All models: 50+ concurrent requests
├── Priority processing: Highest priority
├── Queue position: Dedicated infrastructure
└── Wait time: <5 seconds guaranteed
```text

## Model-Specific Constraints

### GPT-4o Limitations

**Strengths & Constraints:**
```text
Best For:
├── General conversation
├── Code generation
├── Creative writing
├── Problem solving

Limitations:
├── Knowledge cutoff: October 2023
├── Real-time data: Requires web search
├── Mathematical reasoning: Good but not specialized
├── Image generation: Not supported
├── Audio processing: Not supported
```text

### Claude 3.5 Sonnet Limitations

**Strengths & Constraints:**
```text
Best For:
├── Long-form content
├── Analysis and reasoning
├── Code review
├── Research tasks

Limitations:
├── Knowledge cutoff: April 2024
├── Real-time data: Requires web search
├── Creative tasks: Conservative approach
├── Image generation: Not supported
├── Function calling: Limited compared to GPT
```text

### o1-preview Limitations

**Strengths & Constraints:**
```text
Best For:
├── Complex problem solving
├── Mathematical reasoning
├── Scientific analysis
├── Multi-step reasoning

Limitations:
├── Processing time: Significantly slower
├── Cost: Higher token consumption
├── Streaming: Not available
├── Simple tasks: Overkill and expensive
├── Real-time chat: Not recommended
```text

### GPT-4o mini Limitations

**Strengths & Constraints:**
```text
Best For:
├── Quick responses
├── Simple tasks
├── High-volume processing
├── Cost-sensitive applications

Limitations:
├── Complex reasoning: Limited capability
├── Long documents: May miss nuances
├── Creative tasks: Basic level
├── Technical depth: Reduced compared to full models
```text

## Memory and Context Management

### Context Optimization

**Automatic Management:**
```text
Context Pruning:
├── Old messages: Removed first
├── System prompts: Always preserved
├── File content: Kept when possible
├── Important context: User-marked preservation

Smart Truncation:
├── Conversation history: Intelligent summarization
├── File content: Keep most relevant sections
├── Memory references: Prioritize recent and important
├── User preferences: Respect manual selections
```text

### Memory Integration

**Memory System Limits:**
```text
Memory Usage:
├── Auto-retrieval: Top 5 relevant memories
├── Manual selection: Up to 10 memories
├── Context consumption: ~100-500 tokens per memory
├── Relevance scoring: AI-powered selection

Integration Constraints:
├── Memory content: Counted against context limit
├── Search time: <2 seconds for retrieval
├── Relevance threshold: Configurable per user
├── Update frequency: Real-time for new memories
```text

## Performance Characteristics

### Response Time Patterns

**Typical Performance:**
```text
Response Time Factors:
├── Model complexity: o1 > Claude > GPT-4o > mini
├── Input length: Linear scaling with content
├── Task complexity: Non-linear scaling
├── Server load: Variable based on demand

Optimization Strategies:
├── Streaming: Reduces perceived latency
├── Caching: Faster responses for similar queries
├── Load balancing: Distributes requests efficiently
├── Regional servers: Reduces network latency
```text

### Quality vs Speed Trade-offs

**Model Selection Guidelines:**
```text
For Speed (GPT-4o mini):
├── Simple Q&A
├── Basic code completion
├── Quick translations
├── High-volume processing

For Balance (GPT-4o):
├── General conversation
├── Code generation
├── Content creation
├── Most use cases

For Quality (Claude 3.5):
├── Long-form analysis
├── Complex reasoning
├── Research tasks
├── Detailed explanations

For Deep Thinking (o1-preview):
├── Mathematical problems
├── Scientific reasoning
├── Complex problem solving
├── Multi-step analysis
```text

## Error Handling and Limits

### Common Error Types

**Context Limit Errors:**
```text
Error: "Input exceeds maximum context length"
Solutions:
├── Reduce conversation history
├── Summarize large documents
├── Split requests into smaller parts
├── Use models with larger context windows
```text

**Timeout Errors:**
```text
Error: "Request timed out"
Solutions:
├── Simplify the request
├── Use a faster model
├── Break complex tasks into steps
├── Retry with smaller input
```text

**Concurrent Limit Errors:**
```text
Error: "Too many concurrent requests"
Solutions:
├── Wait for current requests to complete
├── Implement request queuing
├── Upgrade to higher plan tier
├── Optimize request frequency
```text

## API-Specific Limits

### Rate Limiting by Model

**Model-Specific Rates:**
```text
GPT-4o:
├── Free: 5 requests per hour
├── Pro: 100 requests per hour
├── Team: 500 requests per hour
├── Enterprise: Custom limits

Claude 3.5 Sonnet:
├── Free: 3 requests per hour
├── Pro: 80 requests per hour
├── Team: 400 requests per hour
├── Enterprise: Custom limits

o1-preview:
├── Free: 2 requests per hour
├── Pro: 20 requests per hour
├── Team: 100 requests per hour
├── Enterprise: Custom limits

GPT-4o mini:
├── Free: 20 requests per hour
├── Pro: 500 requests per hour
├── Team: 2,000 requests per hour
├── Enterprise: Custom limits
```text

## Best Practices

### Model Selection

**Choosing the Right Model:**
```text
Decision Framework:
├── Task complexity: Match model capability to need
├── Response time: Balance speed vs quality
├── Cost considerations: Optimize for budget
├── Context requirements: Consider input size

Guidelines:
├── Start with GPT-4o for general use
├── Use mini for simple, high-volume tasks
├── Choose Claude for analysis and long content
├── Reserve o1 for complex reasoning problems
```text

### Context Optimization

**Efficient Context Usage:**
```text
Best Practices:
├── Provide clear, concise prompts
├── Remove unnecessary conversation history
├── Summarize large documents before upload
├── Use memory system for important information

Optimization Techniques:
├── Template prompts for repetitive tasks
├── Chunk large content into manageable pieces
├── Use appropriate models for task complexity
├── Monitor context usage in real-time
```text

## Monitoring and Analytics

### Usage Tracking

**Model Performance Metrics:**
```text
Tracked Metrics:
├── Response time per model
├── Context utilization efficiency
├── Error rates by model type
├── Cost per interaction by model

Analytics Dashboard:
├── Model usage distribution
├── Performance trends over time
├── Cost optimization recommendations
├── Error pattern analysis
```text

## Next Steps

- [Understand rate limits](/limits/rate-limits)
- [Learn about storage limits](/limits/storage)
- [Explore AI models](/ai-models/overview)

## Related Resources

- [Token Usage](/tokens/how-it-works)
- [AI Models Overview](/ai-models/overview)
- [Performance Optimization](/ai-models/limits)