Writing & content

Write long-form fiction or a book chapter

Keep characters, plot and voice consistent across tens of thousands of words.

Saves a chapter a week instead of a monthIntermediateBest pick: Claude

Best tools for this task

Every pick scored out of 10 on how accurate its output is, how fast it gets you a usable result, and how cheap it is to run. Reorder the list by whichever matters most.

Most accurate

Claude 9.4

Fastest to a result

Claude 9.5

Cheapest to run

Sudowrite 6.3

CL

1. Claude

Best pick
Free · Pro $20/mo ($17/mo annual) · Max from $100/mo

Largest useful context for feeding back earlier chapters.

Accuracy
9.4/10
Speed
9.5/10
Cost
6.2/10
SW

2. Sudowrite

Hobby $19/mo · Professional $29/mo · Max $59/mo

Built for novelists: story bible, character memory and scene expansion.

Accuracy
8.2/10
Speed
8.7/10
Cost
6.3/10

How to do it, step by step

  1. 1

    Write the story bible first — characters, setting and the arc in one page.

  2. 2

    Generate scene beats, not prose, then expand one beat at a time.

  3. 3

    Rewrite dialogue yourself; it is what readers notice as machine-made.

What usually goes wrong

Publishers increasingly ask about AI use — keep a record of what you generated.