Get a clean summary in the exact shape you need
Default model summaries are often the wrong length or format for where they need to go. This tool gives you precise control: pick a sentence count, a style, and an optional focus, and it builds the right instruction so the response comes back as a tight paragraph, a bullet list, or a single headline — using your own API key.
Why output format matters as much as length
Asking a model to “summarize this” produces unpredictable output: sometimes a paragraph, sometimes a bullet list, sometimes three sentences, sometimes ten. When you have a specific destination in mind — a Slack update, an email subject line, a five-point brief — the format matters as much as the content. This tool encodes the format precisely in the instruction so the model produces exactly the shape you need, not a general approximation.
The three styles and where they fit
Paragraph — flowing sentences. Use for executive briefings, email bodies, and any context where bullet points would feel abrupt. Set the length from 1 (a one-sentence TL;DR) to 10 (a thorough multi-sentence overview).
Bullets — a short list of distinct points. Use for Slack summaries, meeting notes, slide copy, and anywhere scanning matters more than prose flow. The count sets the number of bullets, not the number of sentences per bullet.
Headline — a single punchy line, ignoring the length slider entirely. Use for email subject lines, push notification copy, article titles, and social posts where brevity is the constraint.
How it works
You paste the text, set a length from 1 to 10, and choose a style. The tool assembles a system instruction tailored to that style — for example, “summarize in 3 sentences as a single paragraph” or “summarize as 5 concise bullet points” — and sends your text as the user message to OpenAI or Anthropic. An optional focus field appends a priority hint so the model emphasizes the aspects you care about. The result is returned verbatim and can be copied with one click.
Using the focus field effectively
The focus field adds a priority instruction: prioritize [your focus]. Examples
that produce meaningfully different summaries from the same source:
- “risks and blockers”
- “cost implications”
- “action items for the engineering team”
- “what changed since last week”
Without a focus, the model picks the most salient content by its own judgement. With a focus, it weights the summary toward the angle you actually need.
Tips and notes
Headline mode ignores the length slider and produces one short line, ideal for
titles and subject lines. For consistent results across many inputs, keep the
length and style fixed and vary only the focus. Cheaper models like gpt-4o-mini
and claude-3-5-haiku are usually more than good enough for summarization, so use
them to keep costs low at volume. Your key never leaves your browser except to call
the provider directly, and it is never stored.