# Optimizing your site shouldn't depend on having a department. > Bixlow is an AI CRO agent that proposes, builds, launches and reads changes on any site with a single script, on its own audience, splitting and Bayesian statistics engine, with Bixlow Studio — strategists, designers and engineers — behind it for teams that want the program run for them. - Source: https://bixlow.com/en/why-bixlow - Language: en - Publisher: Bixlow Experimentation suites give you the infrastructure and leave you the work. Agencies do the work at their own pace. Bixlow gives you an AI agent that does the work, an engine that measures it properly, and a studio of people behind it if you want it done for you. - **Who does the work:** An AI agent - **Who's behind it:** Bixlow Studio - **Developer:** Not needed - **Verdict:** Bayesian, with gates ## The three usual options, and where they fall short Almost every team that wants to improve its site's conversion ends up in one of these three places. ### An experimentation suite It gives you the split and the reports, but someone has to decide what to test and a developer has to build every variant. Without that team, the license goes unused. ### A CRO agency It does the work, but at its own pace: audit, report, proposal and several weeks to the first test. And every variant still needs someone to build it on your site. ### Doing nothing The site changes on gut feeling, nobody knows which change worked, and decisions are made from a Google Analytics screenshot. ## Four reasons to choose Bixlow It is not one more tool someone has to operate. It is the whole loop, with people behind it. 1. **An agent that closes the loop.** The agent doesn't stop at suggestions: it proposes the hypothesis, builds the change, sets up measurement and reads the result. You approve before anything ships. 2. **A studio behind it.** Bixlow Studio is a team of senior strategists, designers and engineers working on the same product. Use Bixlow on your own, with them, or let them run the whole program. 3. **No developer.** One script on your site, once. After that every change is built as injected code: nothing is written into your theme, and stopping a change removes it on the next page load. 4. **Honest statistics.** A Bayesian engine declares a winner only with a minimum sample, a minimum duration and enough probability. Neither the interface nor the AI computes its own verdict. ## What Bixlow does differently Each reason rests on something concrete in the product, not on a promise. ### Agent: From finding to published change The agent works inside the editor and the project chat, on your real site, with your brand and your data. - Builds components, bindings, triggers, goals and audiences. - Turns an idea into a hypothesis with its brief. - Reads the experiment's verdict and proposes the next step. ### Studio: Senior people, the same product The agents find opportunities and build; a strategist reviews and approves every step. - Conversion audit and a prioritized roadmap. - Tests and changes shipped every week. - A monthly program report reviewed with a strategist. ### No developer: One script, nothing else Works on Shopify, WooCommerce, PrestaShop, Webflow, Framer, WordPress and custom builds. - Install in the head or through Google Tag Manager. - The script is asynchronous and fails silently. - Every change is reversible and kept in the version history. ### Statistics: Nobody eyeballs a result Probability to be best, expected loss and a 95% credible interval, with reproducible results. - Three gates before a variant is declared the winner. - Guardrails that warn when a secondary metric gets worse. - Sample ratio mismatch (SRM) check. ## The agent does the work; you and the Studio decide Bixlow doesn't replace anyone's judgment. It removes the work between an idea and a measured result. ### You decide - Which goals matter to your business. - Which ideas deserve testing first. - Whether to do it yourself or with Bixlow Studio. - Publishing: nothing reaches your site without your approval. ### The agent does - Proposes hypotheses from your data. - Builds the change in your brand's look. - Sets up goals, audiences and the test. - Reads the engine's verdict and proposes the next one. ### A week with Bixlow - **Monday:** The agent proposes three prioritized hypotheses - **Tuesday:** It builds the first variant on your site - **Wednesday:** You review it in the preview and publish it - **After that:** The engine measures until there is a verdict - **If you want it done:** Bixlow Studio runs the program for you ## Bixlow Studio: Product or Studio: you choose the level Bixlow works on its own, with guidance, or as a managed CRO program run by Bixlow Studio on your site. - Do it yourself: the agent and the platform, on your plan. - Do it with us: a strategist guides your decisions. - Do it for me: audit, roadmap and weekly deliveries. ## FAQ ### How is Bixlow different from Optimizely, VWO or AB Tasty? Those tools are experimentation infrastructure for teams that already have a CRO specialist and a developer to build every variant, on an enterprise license. Bixlow adds the missing part: an AI agent that decides what to test, builds the variant and reads the result, and a studio behind it. ### And compared with a CRO agency? Bixlow Studio works like an agency, but with agents that build and launch changes directly on your site with Bixlow. Every change is reversible and measured, and results arrive in a shared report, not a backlog. ### What size of site is Bixlow for? Sites of any size: ecommerce, SaaS or lead generation. The statistics engine takes each test's traffic into account before declaring a winner. ### Do I need a developer? No. You install a script once, and from then on the agent builds each change as code injected into your site. ### Does the AI publish changes on its own? No. The agent proposes and builds, but publishing is always a person's decision. ## Start with one change Install the script, ask the agent for its first proposal and decide whether it ships. If you'd rather we did it, talk to the Studio.