DeepSeek
by DeepSeek
DeepSeek is a Chinese AI lab known for capable open-weight models, particularly in reasoning and coding. Review its data-handling terms before putting sensitive work through its hosted service.
- Reasoning and coding experiments
- Self-hosting open weights
- Cost-sensitive API use
Check the vendor's own site for current plans, pricing and limits. Those change often.
Guides
Prompts
Algorithm Reasoning Walkthrough
Tracing a small example by hand is a practical way to catch logic errors in reasoning-focused models.
coding
Complexity and Bug Check
Requiring a triggering input for each bug filters out false alarms, which are a common problem in automated reviews.
coding
SQL Performance Reasoning
Asking for step-by-step reasoning about where the time goes encourages the model to work from the schema and plan rather than apply generic tips.
data
Work Through a Problem and Verify It
A second method catches slips that a single pass can hide.
analysis
Questions & answers
Agent templates
DeepSeek Code Debugger with Explicit Reasoning
Debugs a failing script by stating hypotheses, tracing the code against the error, and proposing the smallest fix with a way to prove it.
4 min read
DeepSeek Data-Handling Gatekeeper
A pre-paste checker that scans text for sensitive data and says block, mask or allow before you send it to any hosted AI service.
4 min read
DeepSeek Local-Model Short-Prompt Coder
A compact coding assistant prompt for open-weight models run locally, built for small context and short answers with one task at a time.
3 min read
DeepSeek Reasoning Code Review Bot
A small Python command-line bot that sends one source file to the DeepSeek chat API in reasoning mode and prints a prioritized code review.
6 min read+ script
DeepSeek Step-by-Step Math and Logic Checker
Checks a calculation or argument one step at a time, recomputes each step independently and reports the first step that fails.
4 min read