ClaudeBest for writing and analysis
Claude Sonnet 5.5 is priced at $2 and $10 per million tokens. Disclosure: Claude helps build this site.
Read the review →GeminiBest in Google tools
Gemini 3.5 Flash in the Gemini app and Search; Gemini 4 Argon is in limited rollout.
Read the review →DeepSeekBest low-cost API
V4.1-Flash is a 552B mixture-of-experts model with native visual understanding.
Read the review →MistralBest open-model preview
Mistral Large 4 is in preview with open weights promised by the end of October.
Read the review →
Creators use assistants to brainstorm, rewrite and turn rough ideas into detailed prompts. The right one depends on the tools you already use and the writing you prefer.
How we choose
We compare each maker’s own details on latest models, availability and pricing, and recommend testing the same three real tasks.
Test tasks
- Turn a rough idea into a detailed image prompt.
- Edit a messy draft.
- Summarise a long document.
See our ChatGPT vs Claude and ChatGPT vs Gemini comparisons.
Related
See the AI model tracker for current versions and sources, all comparisons and all best-of lists.