SAT, AUGUST 01, 2026
Independent · In‑Depth · Practitioner‑Tested
Claude Writing

Best Claude Sonnet 5 Prompts for Writing (2026) — Use Before August 31

Claude Sonnet 5 at $2/$10/M intro pricing (through August 31, 2026) is the most capable Claude model available at this price point. Sonnet 5 improves on Sonnet 4.6 with adaptive thinking, lower hallucination, and better instruction following — the gains are most visible in writing tasks requiring nuance, judgment, or multi-step refinement. From September 1, Sonnet 5 moves to $3/$15/M plus the new tokenizer adds 10-35% more tokens per request. These prompts are optimised for claude.ai Pro and the Anthropic API (claude-sonnet-5) — use them before the deadline to maximise value.

⌨️ 6 prompts 🕐 Updated Aug 1, 2026
💡 How to use these prompts: Replace everything in [BRACKETS] with your specific details before sending. Click Copy to copy any prompt to your clipboard instantly.
1
Write a Blog Post With a Clear Point of View
Write a point-of-view blog post that takes a clear stance on any topic
[CLAUDE SONNET 5 — $2/M THROUGH AUG 31]

Write a [WORD COUNT]-word blog post on the following topic. Take a clear, specific position — this is a point-of-view piece, not a neutral overview.

Topic: [DESCRIBE]
Target reader: [WHO AND THEIR KNOWLEDGE LEVEL]
Position to argue: [STATE THE SPECIFIC STANCE YOU WANT TO TAKE]
Evidence to cite: [ANY DATA, EXAMPLES, OR FACTS TO BUILD ON]
Tone: [CONVERSATIONAL / AUTHORITATIVE / SHARP]

Rules:
- Open with your strongest claim, not background context
- Every paragraph must advance the argument — no throat-clearing
- End with a specific implication or call to action, not a summary
- Do not hedge excessively — own the position
2
Rewrite in Brand Voice
Rewrite any content to match an established brand voice with specific changes listed
Rewrite the following content in our brand voice. Match the tone, word choice, and sentence rhythm exactly.

Brand voice description: [DESCRIBE — formal but warm / conversational and direct / sharp and opinionated / approachable expert]
Example content that captures our voice well: [PASTE 1-2 EXAMPLES]
Content to rewrite: [PASTE CONTENT]

After rewriting, list the 3 specific changes you made to match the brand voice. If you think any part of the original content conflicts with the brand voice you cannot fix through rewriting, flag it.
3
Write a Cold Email That Earns a Reply
Write cold emails that earn replies with two tone options
Write a cold email to the following person for the following purpose.

Who I am sending to: [NAME, ROLE, COMPANY — and what you know about them]
Why I am reaching out: [THE SPECIFIC REASON — not a generic pitch]
What I want them to do: [ONE SPECIFIC ACTION — reply, book a call, review something]
What I can offer them: [WHY THIS IS WORTH THEIR TIME]

Rules:
- Subject line: under 8 words, no clickbait
- Opening: reference something specific about them (not generic "I love your work")
- Body: 3 sentences max before the ask
- Ask: one clear action, not a menu of options
- No "I hope this email finds you well" or similar openers

Write 2 versions: one direct, one softer.
4
Turn a Transcript Into a Polished Article
Transform any interview or transcript into a publication-ready article
Turn the following transcript into a polished [FORMAT: article / blog post / interview piece] of approximately [WORD COUNT] words.

Transcript: [PASTE TRANSCRIPT]
Publication style: [WHERE THIS WILL APPEAR AND THE EXPECTED STYLE]
Key quotes to preserve verbatim: [LIST ANY QUOTES YOU WANT KEPT EXACTLY]

Rewrite rules:
- Reorganise for narrative flow — do not follow the transcript order if something else works better
- Paraphrase filler and repetition; preserve meaning
- Keep any statistics or specific claims accurate — do not invent details
- The final piece should read as if written by a skilled journalist, not transcribed
5
Write Product Descriptions That Sell
Write benefit-first product descriptions that convert for any channel
Write [NUMBER] product descriptions for the following product(s). Each should be under [WORD LIMIT] words and lead with the benefit, not the feature.

Product(s): [DESCRIBE EACH PRODUCT]
Target customer: [WHO BUYS THIS AND WHY]
Tone: [E.G. PREMIUM / APPROACHABLE / TECHNICAL / PLAYFUL]
Channel: [WHERE THESE APPEAR — website / Amazon / catalogue / email]

For each description:
- First sentence: the primary benefit in plain language
- Second-third sentences: the features that deliver that benefit
- Final sentence: who this is for (use "if you" framing)

Do not use: "revolutionary", "game-changing", "unlock", "empower"
6
Edit for Voice Consistency Across a Long Document
Make voice and tone consistent across any multi-section document
Edit the following document so the voice is consistent from start to finish. The first section sets the target voice — everything else should match it.

Common problems to fix:
- Sudden shifts from formal to casual (or vice versa)
- Sections that use different terminology for the same concept
- Changes in person (switching between "you" and "the user" or "we" and "the company")
- Tonal inconsistencies — especially in headers and transitions

Output the edited document with a brief note on what changed and in which sections.

Document: [PASTE DOCUMENT]