# Chorus > Simulated B2B message testing you can run again after every edit. Get inspectable directional evidence in minutes, inside the AI assistant you already use. Chorus helps B2B marketing leaders test, edit and re-test messages before launch. Your assistant designs each study with your context. Chorus reviews the plan, refuses unsound parts with the fix, quotes the respondent cost and runs the approved study. You can read every simulated answer, inspect the full distribution and see which option leads or when the result is too close to call. ## Product map - [Home](https://chorusb2b.com/): Product overview, fit, setup and pricing - [For product](https://chorusb2b.com/for-product): Test a launch message, name or positioning before you build around it - [Start free](https://chorusb2b.com/auth): 600 respondents, work email required, no credit card - [Full product description](https://chorusb2b.com/llms-full.txt): Audience, workflow, limits, pricing and FAQ ## How it works 1. **Connect your assistant.** Paste one private link into Claude, ChatGPT, Gemini or Grok. 2. **Design and approve the study.** Your assistant defines the audience shape, questions, one version and decision rule. Chorus reviews, refuses unsound parts with the fix and quotes before anything runs. 3. **Run, edit and re-run.** Inspect every simulated answer and the full distribution. Close results are reported as **no clear winner**. Make one deliberate edit, then run the next study. ## One-shot snapshot versus the Chorus loop A fixed free test runs one artifact against a preset audience and preset questions, then returns one result outside your agent. Chorus lets you use your buyer definition, your questions and your pass/fail bar inside your agent. Each plan runs one condition. To compare versions or test an edit, run the next controlled study with only that condition changed. ## What it is for - Comparing headlines, value propositions, campaign framings and calls to action under identical conditions - Examining simulated objections and language worth checking with customers - Narrowing many ideas to the few worth validating in the real market ## Limits - Directional evidence, not a replacement for real customers - Strongest for comparisons and simulated objection-mining - Absolute scores are not independently calibrated market benchmarks - Does not forecast conversion, willingness to pay or market size - Confirm expensive decisions with real customers ## Pricing You buy respondents. No subscription, no seats, and respondents never expire. | Pack | Respondents | Price | Typical studies | Approx. cost per study | |---|---:|---:|---:|---:| | Free | 600 | $0 | ~4 | $0 | | Ensemble | 2,500 | $99 | 15+ | ~$6 | | Choir | 7,500 | $249 | 50 | ~$5 | | Symphony | 20,000 | $549 | 130+ | ~$4 | Study and cost estimates assume 150 respondents per study. Actual usage varies. Site: https://chorusb2b.com Start free: https://chorusb2b.com/auth Sitemap: https://chorusb2b.com/sitemap.xml