DeepSeek prompt library
Every prompt here shows how many tokens it costs, what one call costs, and which model to use.
Prompts
40
Categories
7
Cost per call
from $0.00004
All copy-ready
Yes
Why prompt length matters
A 2,000-word system prompt costs four times as much per call as a 500-word version. Most prompt libraries get longer and longer without telling you the price. We label it.
Writing
Rewrite, summarise, headlines, outlines, proofread
Coding
Code review, debugging, refactor, tests, SQL
Analysis
Data interpretation, decision matrices
Extraction
JSON extraction, batch classification
Office
Email, meeting minutes, weekly reports
Learning
Concept explanations, Socratic quizzing
Support
De-escalation, refund negotiation
Model guidance baked into every prompt
| Task | Model | Why |
|---|---|---|
| Rewriting, summarising, email, minutes, classification | Flash | Pattern work; the gap to V4 Pro is smallest but the price gap is 3–4x |
| Code review, debugging, refactor, decision analysis | V4 Pro | Needs a reasoning chain; a wrong answer costs far more than the tokens |
| Outline generation | V4 Pro | One good outline shapes the next few thousand words |