Prompt.Lab
Prompt.Lab Editorial

Better prompts,
properly explained.

Twenty-nine focused guides and explainers built from official documentation, original examples, and sourced reporting.

Source-backedHuman reviewedUpdated for 2026
Draft examines a luminous prospectus and an AI data-center model beneath an untouched stock-exchange bell
PL / 29
anthropic-ipoai-investors

AI business

Anthropic’s $2 Trillion IPO? The AI Bet Wall Street Can’t Ignore

The reported valuation, shifting IPO timeline, major investors and business questions behind Claude’s possible stock-market debut.

Updated Sep 6 · 10 min read
Draft directs a constellation of coding, research, document, and computer-use tools from a deep-blue observatory
PL / 26
gpt-6-astralaunch-guide

OpenAI models

GPT-6 Astra Is Here: What Changed and Who Should Use It

A clear guide to Astra's computer use, coding, research, async tools, mid-turn steering, context window, pricing, and rollout.

Updated Sep 4 · 13 min read
Draft guides documents, code, research, email, and planning through a violet and amber long-running knowledge engine
PL / 27
fable-5-1long-horizon-agents

Claude models

Claude Fable 5.1: Built for Work That Runs for Hours

What Anthropic's new flagship changes for long-running agents, repository-scale coding, research, professional work, cache economics, and safeguards.

Updated Sep 4 · 13 min read
Draft evaluates a blue star-like multi-tool system and a violet-amber long-horizon knowledge engine on the same neutral task board
PL / 28
astra-vs-fablefrontier-models

Model comparison

GPT-6 Astra vs Claude Fable 5.1: Which Should You Use?

Compare the two new frontier models by workflow, context, output, price, cache, coding, computer use, agent controls, safeguards, and availability.

Updated Sep 4 · 14 min read
Draft coordinates four specialist AI agents for research, coding, security, and verification from a violet mission-control room
PL / 25
ai-agentssubagents

AI agents

AI Agents Explained: Codex, Claude Code and Subagents

Understand the agent loop, coding agents, subagents, and agent teams—then use practical prompts for delegation, verification, and safer autonomous work.

Updated Aug 25 · 15 min read
Draft studies a RAM module, stacked high-bandwidth memory, and AI data-center demand inside a violet market-analysis console
PL / 24
ram-pricesai-infrastructure

AI hardware

Did AI Break the RAM Market? Why Prices Are Surging in 2026

How AI and HBM redirected memory capacity—with verified price examples from Raspberry Pi, NVIDIA DGX Spark, Mac mini, Mac Studio, and PC DRAM.

Updated Aug 24 · 14 min read
Draft follows a complete Claude Code workflow from repository inspection through testing and final review
PL / 21
claude-codereal-projects

Claude Code

Claude Code Guide: How to Use It for Real Projects

A verification-first workflow for exploring a repository, planning changes, implementing with boundaries, running real checks, and reviewing the final diff.

Updated Aug 22 · 13 min read
Draft conducts a system of prompt cards for debugging, building, and refactoring software
PL / 22
coding-promptstemplates

Claude Code

25 Claude Code Prompts for Building, Debugging and Refactoring

Copy focused, evidence-first templates for understanding a codebase, diagnosing bugs, building features, refactoring safely, testing, and shipping.

Updated Aug 22 · 16 min read
Draft compares four distinct Claude model cores representing Fable, Opus, Sonnet, and Haiku
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fable-5model-comparison

Claude models

Claude Fable 5 vs Opus 5 vs Sonnet 5 vs Haiku 4.5

Compare Anthropic's current models by capability, speed, context, cost, and workload—then choose from evidence instead of hype.

Updated Aug 22 · 11 min read
Draft performs a defensive security review on a website hologram surrounded by five protective checkpoints
PL / 20
security-promptsdefensive-review

Website security

20 AI Prompts to Check Your Website Security

A defensive checklist for reviewing configuration, access control, input handling, APIs, dependencies, monitoring, and recovery—with evidence required for every finding.

Updated Aug 21 · 18 min read
Draft assembles a responsive website while a protected server connects it to an AI system
PL / 19
build-with-aiweb-development

Web development

How to Build a Website with AI: From Idea to Live Site

A practical workflow for planning, building, testing, and publishing—plus a secure way to add an AI feature without exposing your API key.

Updated Aug 21 · 15 min read
Draft calibrates a rough prompt into four precise instruction panels
PL / 15
prompt-optimizationchecklist

Prompt optimization

How to Optimize AI Prompts: A Practical Checklist

A focused final check for the outcome, context, constraints, uncertainty, and response format—plus the prompt clutter you should remove.

Updated Aug 20 · 10 min read
Draft builds an essay by connecting sources, an outline, and a revised document
PL / 16
essay-promptsresponsible-learning

Essays

Essay Prompts for AI: Structure, Feedback and Better Reasoning

Use AI as a tutor and editor—not a ghostwriter—with prompts for understanding a question, testing a thesis, organizing evidence, and revising responsibly.

Updated Aug 20 · 11 min read
Draft coordinates writing, research, email, and planning from a professional workspace
PL / 17
claude-promptsreal-work

Claude

Claude Prompts for Real Work: Writing, Research, Email and Planning

Eight reusable workflows for deliverables that must survive review—built around evidence, constraints, uncertainty, and a clear human handoff.

Updated Aug 20 · 11 min read
The Prompt.Lab mascot listens to Draft in a warm and quiet reflection room
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responsible-aireflection

Wellbeing

Can AI Be Your Therapist? Prompts for Safe Reflection

No—a general chatbot is not a therapist. Learn safer prompts for organizing thoughts, preparing for a real conversation, and recognizing when to stop.

Updated Aug 20 · 10 min read
A luminous fountain pen connects email, article, summary, and revision formats
PL / 12
ai-writing-promptstemplates

Writing

AI Writing Prompts: 12 Templates for Clearer Content

Practical templates for emails, articles, summaries, rewriting, and professional communication—plus the decisions that keep the result useful and human.

Updated Aug 19 · 11 min read
Draft uses an AI coding workspace to debug, build, and learn
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ai-coding-promptsdevelopment

Coding

AI Coding Prompts: 12 Templates to Debug, Build, and Learn

Give an AI coding assistant the evidence, constraints, and acceptance criteria it needs—with focused prompts for debugging, reviews, tests, APIs, and more.

Updated Aug 19 · 12 min read
Four creative-direction controls combine into one polished image
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image-promptstemplates

AI images

AI Image Prompt Templates: A Practical Formula + 12 Examples

Write visual briefs that control subject, composition, lighting, and style—then adapt twelve examples for real creative projects.

Updated Aug 19 · 10 min read
Draft organizes scattered ideas into four clear prompt panels
PL / 01
prompt-engineeringfundamentals

Essential guide

How to Write Better AI Prompts: A Practical 2026 Guide

A model-neutral framework for turning an idea into a clear task—with examples, limits, and a reusable four-part structure.

Updated Aug 9 · 10 min read
A precision prism transforms a tangled request into four aligned instruction cards
PL / 02
chatgptoptimization

ChatGPT

ChatGPT Prompt Optimizer: From Vague Request to Clear Instructions

What a prompt optimizer actually changes, when it helps, and how to judge whether the optimized prompt is genuinely better.

Updated Aug 9 · 9 min read
Layered paper instructions arranged inside a warm copper and violet system
PL / 03
claudeprompt-engineering

Claude

Claude Prompt Engineering: Best Practices That Actually Matter

A practical translation of Anthropic’s official guidance: success criteria, examples, XML structure, output control, and testing.

Updated Aug 9 · 9 min read
A diagnostic beam isolates a bug inside a modular coding workspace
PL / 04
codingdevelopment

Coding

AI prompts for coding that give the model enough context.

Copy practical AI prompts for debugging, explaining code, building websites and apps, Python, JavaScript, SQL, refactoring, and code review.

Updated Aug 9 · 11 min read
A voice waveform becomes a sequence of carefully composed pages
PL / 05
writingproductivity

Writing

AI prompts for writing without losing your voice.

Practical AI writing prompts for emails, articles, essays, stories, rewriting, grammar, professional writing, and summaries.

Updated Aug 9 · 10 min read
Draft follows a geometric reasoning path toward a verified result
PL / 06
mathlearning

Mathematics

AI prompts for math that teach the method, not only the answer.

Use structured AI prompts for equations, algebra, geometry, calculus, answer checking, step-by-step explanations, and practice exercises.

Updated Aug 9 · 10 min read
Four creative brief cards pass through a lens to form a polished image
PL / 07
image-generationcreative

AI images

AI image prompt generator: describe the picture you actually mean.

Learn how to create AI image prompts with clear subject, composition, lighting, style, text, constraints, and iterative editing instructions.

Updated Aug 9 · 11 min read
A violet path connects a curated gallery of visual prompt styles
PL / 08
image-promptsexamples

Image examples

Prompts for AI images: practical patterns for stronger visuals.

Explore practical prompts for AI images including portraits, product shots, posters, illustrations, interfaces, and controlled image edits.

Updated Aug 9 · 11 min read
Draft builds an essay from evidence cards, structure, and revision
PL / 09
essayslearning

Essays

Essay prompt generator: think, structure, draft, and revise responsibly.

Create useful essay prompts for topic exploration, thesis development, outlines, evidence, counterarguments, drafting, and revision.

Updated Aug 9 · 10 min read
A raw idea travels through four connected prompt-building chambers
PL / 10
prompt-generatorframework

Prompt generation

AI prompt generator: turn an idea into instructions an AI can use.

Learn how an AI prompt generator structures rough ideas into role, objective, context, constraints, and required output—with practical examples.

Updated Aug 9 · 10 min read
A crumpled request passes through calibration gates and emerges structured
PL / 11
optimizationbest-practices

Prompt optimization

Prompt optimizer: what should actually improve?

Learn what a prompt optimizer should change, what it should preserve, and how to evaluate improved prompts for ChatGPT, Claude, and Gemini.

Updated Aug 9 · 10 min read

Editorial standard

Useful before searchable.

01

Real questions

Topics begin with what people actively search for, then narrow to what Prompt.Lab can explain responsibly.

02

Primary sources

Core recommendations link directly to official OpenAI, Google, Anthropic, and Google Search documentation.

03

Original examples

Every before-and-after prompt is written for the article so the lesson is visible, not merely described.

04

Transparent process

We disclose how the article was researched, drafted, reviewed, and updated.

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