Normie ModeBest AI for writing a book
Planning, drafting and editing a novel or non-fiction book.
Get it with Claude Pro, $20 a month
Top of 14 models for this task
4th and 5th of 14 models for this task
Based only on people's votes. The picks follow a fixed rule using the charts below and each app's plans.
How the models compare
Every model we could score for writing a book, combining the tests below.
Overall for writing a book
Position on a combined score from 3 tests. The longer the bar, the further ahead · Higher is better
On the tests we have, Claude Opus 5.5 comes out on top, followed by Claude Fable 5.1 and Gemini 3.8 Flash.
The evidence
People's votes on creative writing
Tests this task · People compared two anonymous pieces of creative writing. · Higher is better
Claude Opus 5.5 and Claude Fable 5.1 are neck and neck at the top, followed by Gemini 3.8 Flash and Gemini 3.1 Pro; Claude Fable 5.1 costs about 3 times as much.
People's votes on long, detailed requests
Tests a related skill · People compared two anonymous answers to long requests with lots of detail to take in. · Higher is better
Claude Opus 5.5 and Claude Fable 5.1 are neck and neck at the top, followed by Gemini 3.8 Flash and Kimi K3; Claude Fable 5.1 costs about 3 times as much.
People's votes on writing and language
Tests a related skill · People compared two anonymous answers to writing, editing and language questions. · Higher is better
Claude Opus 5.5 and Claude Fable 5.1 are neck and neck at the top, followed by Gemini 3.8 Flash and Gemini 3.1 Pro; Claude Fable 5.1 costs about 3 times as much.
If you build with it
What the makers charge developers who use the models directly. Using an app? The plans above are what you pay.
Cost per 1,000 typical requests
List price, about 1,500 words in and 500 out per request · Lower is better
GPT-6 Luna is cheapest, followed by DeepSeek V4.1 Flash and GPT-5.6 Luna.