TokenCalculator.com

Token Speed Calculator

Compare Token Generation Speed Between Models

Use this calculator to estimate token processing speeds and compare response times for different models.

Estimated Processing Times

Input Processing
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Output Generation
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Total Response Time
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Note: These estimates are based on typical performance data and may vary depending on server load, network conditions, and model implementations.

Compare Multiple Models

Model Speed (tokens/sec) 500-Token Response 2000-Token Response

Understanding Token Generation Speed

Token generation speed is a critical factor in LLM performance and user experience. Here's what affects it:

Key Factors Affecting Speed

  • Model Size: Larger models typically have slower token generation speeds due to more computation per token.
  • Hardware: Models running on more powerful GPUs or TPUs can generate tokens faster.
  • Optimization Level: Models optimized for inference (like distilled versions) can be significantly faster.
  • Batch Processing: Processing multiple requests in a batch can increase throughput but may not reduce individual response time.
  • Generation Parameters: Settings like temperature and top-p sampling can affect generation speed.

Typical Token Generation Speeds

  • Fastest Models (80-120 tokens/sec): Smaller models optimized for speed (GPT-3.5-Turbo)
  • Standard Models (30-60 tokens/sec): Balance of quality and speed (Claude 3 Sonnet, GPT-4o Mini)
  • Premium Models (10-30 tokens/sec): Highest quality models (Claude 3 Opus, GPT-4)
  • Local Models: Speed varies greatly based on hardware, from 1-5 tokens/sec on CPU to 30+ tokens/sec on high-end GPUs

Important: When planning applications, consider not just the raw token speed but also the "Time to First Token" (TTFT), which can significantly impact perceived responsiveness, especially for short responses.

Frequently Asked Questions