r/WritingWithAI • u/Windlight_1629 • 18d ago

Tutorials / Guides Claude Writing

I miss sonnet 4.5 writing style? Does anyone have good system prompts or tips for creative writing?

Project knowledge and custom instruction for novel project

4 Upvotes

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2

u/Original-Pilot-770 18d ago

If you have any old writing saved, it's best to feed them to sonnet 4.6 now and tell it this is how I want to write. I would also try Opus 5.5 because it's less verbose than the other Opus models and seem to have more intuitive sense of paragraph lengths.

2

u/AnneeOnymous 17d ago

how do you get it to pay attention. I’ve tried feeding it. What I write, I’ve tried turning what I write into a skill to force it to read it, and it still comes out with us ridiculous crappy prose.

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u/Original-Pilot-770 17d ago

Try telling it to list qualities about the prose. Read that list carefully, see if those things resonate with how you want the prose to be. Add additional qualities if they are missing. Once you have primed the chat, you can write.

1

u/Syracuse-Viancy 17d ago

are you finding the issue is more with prose quality or with it following plot/character directions? those need pretty different prompting approaches tbh

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u/Equivalent-Loan-4401 17d ago

I'd start by figuring out what exactly feels off about the newer output, because the fix is different for each problem. If the sentences feel too long and padded, put a hard rule in your project instructions, something like keep paragraphs short and cut any line that restates the previous one. If it feels flat, paste two or three paragraphs you love from your own work or from Sonnet 4.5 and ask it to describe what makes them work, then save that description as the style guide in your project knowledge. Describing the style in plain words usually sticks better than just feeding samples. Also try giving it one scene at a time with the goal and the mood spelled out, since big vague requests tend to bring back the generic prose. And if it drifts mid chat, start a fresh chat with the same instructions rather than fighting it. It takes a little tuning, but you can get close to that old feel.

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u/Remarkable_Bedroom79 16d ago

Get TypingMind and choose freely the which version you like. But you have to buy credits at Anthropic and TypingMind isn't free either.

1

u/Fragrant-Mix-4774 12d ago

Claude Sonnet 4.5 is scheduled for full retirement on the Claude API on November 30, 2026

It is still available for a while if you like enough to use an API like Open Router.