A visual guide to understanding token usage in AI models
≈ 7,500 words
≈ 40,000 characters
(rule of thumb → 1 token ≈ ¾ word ≈ 4 chars
)
15 pages, single‑spaced
30 pages, double‑spaced
Think: one dense book chapter
≈ 45–50 min of two‑way chat
(ideal fuel for an Agent summarizer)
~2,300 lines of well‑commented code
Full React component library
Or 50+ Python functions with docs
~350 KB raw JSON
≈ 4,000 trimmed Case records
Perfect for vector‑chunk ingestion
1,024 × 1,024 photo →
• detail:"low"
≈ 85 tokens
• detail:"high"
≈ 765 tokens
• 4K image: ≈ 1,105 tokens (high detail)
Crop, resize, or use URLs to optimize
15‑slide PPT (75 words/slide)
≈ 1,500 tokens of text
OCR scans → chunk → embed for RAG
GPT-5 Thinking: Uses ~2-5x base tokens
Gemini 2.5 Pro: Adjustable thinking budgets
Internal reasoning + final response tokens
1 hour audio ≈ 18,000 tokens
1 min video ≈ 1,500 tokens
Transcription + visual analysis combined
50% cost savings vs real-time
24-hour processing window
Perfect for large-scale analysis
150 multi‑note Service Cloud cases
(≈ 10k tokens total)
Ready for root‑cause clustering & Agent‑Or actions
Compare context windows, capabilities, and optimal use cases for the latest AI models. Note: Claude tokenizer produces ~16-30% more tokens than GPT/Gemini for identical content.
Model | Context Window | Output Limit | Reasoning | Strengths | Best Use Case |
---|---|---|---|---|---|
Gemini 2.5 Pro | 1M tokens (2M coming) | 65K tokens | Yes | Complex reasoning, large context | Research, complex analysis, large documents |
Gemini 2.5 Flash | 1M tokens | 65K tokens | Yes | Best price-performance | General purpose, balanced tasks |
Gemini 2.5 Flash-Lite | 1M tokens | 65K tokens | Yes | Most cost-efficient | High-volume, simple tasks |
Model | Context Window | Output Limit | Reasoning | Strengths | Best Use Case |
---|---|---|---|---|---|
GPT-5 | 400K tokens (API) | 128K tokens | Unified reasoning | 94.6% AIME math, unified model | General purpose, coding, reasoning |
GPT-5 Mini | 400K tokens | 128K tokens | Yes | Lower cost, good performance | Cost-conscious applications |
GPT-5 Thinking | 196K tokens | 128K tokens | Advanced reasoning | Deep reasoning, complex problems | Research, complex problem solving |
Model | Context Window | Output Limit | Reasoning | Strengths | Best Use Case |
---|---|---|---|---|---|
Claude 4 Sonnet | 200K tokens | 64K tokens | No | 72.7% SWE-bench coding | Coding, consistent performance |
Claude 4 Opus | 200K tokens | 64K tokens | No | Premium performance | High-quality text, analysis |
Practical techniques to reduce token usage and improve efficiency with real before/after examples.
Count tokens in real-time and see how different models tokenize your text.
Tokens are the basic units that AI models process. They're not exactly words—they're pieces of words, sometimes characters, sometimes larger chunks. Different languages tokenize differently. English typically averages about 0.75 words per token, but this varies widely.
Understanding token usage helps you optimize your AI interactions: stay within context limits, reduce costs, and improve performance. For large-scale applications, efficient token use can significantly impact your budget and system responsiveness.
To reduce token usage: be concise, use structured formats when possible, choose lower detail levels for images when appropriate, and consider chunking large documents strategically. For API interactions, monitor and analyze your token usage patterns to identify optimization opportunities.