Use Claude Sonnet 5 in Chrome
Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. One shortcut on any page, your own OpenRouter key, provider prices.
Get it for $49How many people are in this thread?
Seven, across 41 comments.
Claude Sonnet 5
Turn this issue thread into a decision
The thread lands on keeping the old endpoint until the next major release. Two people asked for a deprecation warning first, and nobody argued against it.
Claude Sonnet 5 6,840 in, 78 out
What Claude Sonnet 5 is good at
Three jobs it does well from the launcher, and what comes back when you run them.
Ask About Page {question} Summarize {selection} Translate To {language} Fix Spelling and Grammar {selection} Rewrite As {tone} Simplify Text {selection} Ask About Page Claude Sonnet 5 What does this function return?
The function takes a callback and returns the cleanup you are meant to call.
Based on {tab-text}, answer {question}
Questions about docs pages
Ask what a function on a docs page does without leaving the tab you are reading.
What it can read
Every tool reads. Turn any off in settings.
Ask About Page Summarize Translate To The thread ends on keeping the old endpoint, with a warning added first.
Claude Sonnet 5
Long issue threads
Summarize a long issue thread in one pass and get the decision instead of the noise.
Same points, softer wording, two sentences shorter.
Claude Sonnet 5 Rewriting a draft
Turn a blunt draft into something you can send, in the tone you name.
What it costs in your browser
Pay OpenRouter per token. UtilEngine adds nothing.
Claude Sonnet 5 bills $2 for a million input tokens and $10 for a million output tokens. A page of text is a few thousand tokens, so most of what you do in a browser costs cents, not dollars.
At list price a $20 month buys about 1,800 long-article summaries. You are not buying a month, though. You pay for the tokens each job uses, and the rest of your OpenRouter balance just sits there.
The extension asks OpenRouter for the fastest route, which can be a provider's priority tier rather than the one this receipt is priced on. When that tier wins, the same three jobs cost about 1.1x what you see here, and your OpenRouter activity page shows what you were actually charged.
Claude Sonnet 5 or Claude Opus 5
Two models from the same list, side by side, so you can put the expensive one where it earns its price.
Pick it for the page work you do all day
Pick it for the long tangled ones
Switch between them per command. See how
Switch models mid-chat
Set a default for chat, another for Ask AI, and a different one for any command.
77 models, one key
Seven providers in the same picker. OpenRouter bills each one at its own rate.
How to use Claude Sonnet 5 in Chrome
A free key, one paste, and the model shows up everywhere the AI runs.
Create an OpenRouter key
One free key reaches Claude Sonnet 5 and every other model in the list.
Provide API Keys Paste it in AI settings
Run Provide API Keys, paste once, and the key stays in your browser's extension storage.
Models Pick Claude Sonnet 5
Set it for chat, for Ask AI, or for a single command. Switch again whenever you like.
Claude Sonnet 5, answered
Is Claude Sonnet 5 available in UtilEngine today?
Yes. It is in the list as claude-sonnet-5 and calls anthropic/claude-sonnet-5 through OpenRouter with OpenRouter's :nitro speed routing, which the extension uses for every Anthropic model.
What does Claude Sonnet 5 cost through UtilEngine?
Nothing beyond the one-time $49 for the extension. OpenRouter lists Sonnet 5 at $2 per million input tokens and $10 per million output, which puts a page summary near a cent. The extension routes for speed, so a faster provider can serve the request at up to $2.20 per million in and $11 out. Each reply shows the tokens it used.
Do I need an Anthropic account?
No. Your OpenRouter key covers Sonnet 5 alongside every other model in the list, and the credit sits in your OpenRouter account.
Can I use Sonnet 5 for one command and a cheaper model for another?
Yes. The model is stored per command, so Sonnet 5 can drive Rewrite As while Fix Spelling and Grammar runs on GLM 5.3 Flash.
Does the AI act on pages?
No. The toolkit is read-only. It reads what you point it at, shows every call as a chip, and never clicks, types or fills a form for you.
Claude Sonnet 5, one keystroke away
Chat, Ask AI, and your own commands on any page, in a launcher with 50+ built in. One payment, yours forever.
Get it for $49One-time payment. 14-day refund, no questions asked.