HyperWrite
HyperWrite's useful part is the extension: autocomplete that follows you into Gmail and Google Docs, and a shelf of saved prompt tools you can trigger without opening a chat window. The web app is a competent but ordinary chat-plus-tools workspace in a market where Claude, ChatGPT and Gemini all now write and cite, so the question is whether the 250-message Premium quota and the in-browser convenience are worth $16 to $20 a month to you. The agent that once headlined the product survives only as an 'early access' line on the Ultra plan.
Pros
- Chrome extension brings autocomplete and tools into Gmail, Google Docs and most text fields
- Research mode returns citations from web and scholarly sources rather than unsourced prose
- Custom tools and personas let you package a repeatable prompt once and reuse it
- Annual billing cuts Premium to $16 a month, with a free tier to try first
Cons
- 250 AI messages a month on Premium is low for anyone using it as a daily chat assistant
- The free plan's limits are not stated beyond 'limited monthly credits'
- The browsing agent is no longer a shipped feature, only early access on Ultra
- No legal entity, address or country on the site beyond the OthersideAI brand name