{"status":"insufficient_data","category":{"id":"aba8b991-f2f8-43a8-a461-925fa2f22cd9","slug":"open-source-cms","label":"Open-source content management systems"},"window":{"weeks":4,"from":"2026-10-04T19:19:43.153Z","to":"2026-11-01T19:19:43.153Z","prior_from":"2026-09-06T19:19:43.153Z"},"sample_size":0,"prior_sample_size":20,"independent_sample_size":0,"prior_independent_sample_size":20,"min_sample":20,"engine_samples":{"grok":{"runs":0,"last_run_at":"2026-09-30T19:16:55.160194+00:00"},"gemini":{"runs":0,"last_run_at":"2026-09-30T19:16:28.285027+00:00"},"anthropic":{"runs":0,"last_run_at":"2026-09-30T19:16:36.527586+00:00"},"perplexity":{"runs":0,"last_run_at":"2026-09-30T19:16:24.140604+00:00"}},"volatility":{"score":null},"integrity":null,"entries":[],"methodology_url":"https://www.orbator.io/ai-index/methodology","license":"Free to use with attribution to orbator.io","editorial":[{"id":"d8c0f6a7-24e9-41d8-aac9-a75a2f4babc5","section":"how_to_choose","body_md":"Buyer prompts in this window split between design-led marketing sites, headless developer builds, multilingual news, large content teams, plugin ecosystems for ecommerce and membership, and nonprofit versus media use cases. The intent groups show different recommended leaders. Strapi led best_in_category at 100% of 18 runs. WordPress led recommendation at 88.2% of 17 runs. Payload led alternatives at 77.8% of 9 runs. Drupal and WordPress tied comparison at 88.9% of 9 runs each. Directus led problem_solving at 88.9% of 9 runs.\n\nSo the shortlist depends on which question you are actually asking. A headless frontend build points at Directus and Payload, both recommended in 100% of the 9 runs on that prompt. Two products carry verified pricing facts: Strapi at Starter: $35 a month and WordPress at Personal: $9 a month (free tier available), both last verified 2026-09-05.","window_to":"2026-09-05","review_status":"generated","generated_at":"2026-09-05T16:13:12.201Z"},{"id":"bbf9b3cf-6f28-4e6e-89fd-996f83b9e3d6","section":"top_products","body_md":"Strapi ranks first, recommended in 100% of the 9 runs on the prompt about the best open-source CMS for a marketing team that wants full design flexibility. Across the category it was recommended in 23 answers and listed in 21 of 62 sampled answers in the 4-week window to 2026-09-05. Its engine range is the widest in the top five, from 100% of Grok's 7 answers down to 42.9% of Claude's 7 answers. Pricing fact: Starter: $35 a month, last verified 2026-09-05.\n\nDrupal ranks second, recommended in 100% of the 9 runs on the prompt about choosing between self-hosted open-source CMS options for a large content team. It was recommended in 23 answers and listed in 17. Highest engine share was 85.7% of Grok's 7 answers, lowest 42.9% of Perplexity's 14 answers.\n\nWordPress ranks third, recommended in 100% of the 9 runs on the nonprofit versus media company prompt. It was recommended in 28 answers and listed in 9, the largest recommended-to-listed gap in the top five. Highest engine share 85.7% of Grok's 7 answers, lowest 42.9% of Claude's 7 answers. Pricing fact: Personal: $9 a month (free tier available), last verified 2026-09-05.\n\nDirectus ranks fourth, recommended in 100% of the 9 runs on the headless developer prompt, with 20 recommended answers and 13 listed. Highest engine shares 71.4% of Grok's 7 answers and 71.4% of ChatGPT's 21 answers, lowest 28.6% of Claude's 7 answers.\n\nPayload ranks fifth on the same headless developer prompt, recommended in 100% of its 9 runs, with 21 recommended answers and 9 listed. Highest engine share 61.5% of Gemini's 13 answers, lowest 42.9% of ChatGPT's 21 answers.","window_to":"2026-09-05","review_status":"generated","generated_at":"2026-09-05T16:13:12.207Z"},{"id":"94e5f5ed-f978-4f91-ad4f-6a51fbc5f453","section":"engine_disagreement","body_md":"Four of the five engines recommended the same product most among the top five. Strapi led for Gemini across 13 answers, for Grok across 7 answers, for ChatGPT across 21 answers, and for Perplexity across 14 answers. Claude was the exception, recommending Drupal most among the top five across its 7 answers.\n\nThe widest gap between engines belongs to Strapi. Claude recommended it in 42.9% of its 7 answers; Grok recommended it in 100% of its 7 answers. That is a spread of 57.1 points on the same product in the same 4-week window to 2026-09-05. Both of those engines ran 7 answers each, so the two ends of that gap rest on small counts. A buyer weighing Strapi on one engine's answer alone is reading one point on a wide range.","window_to":"2026-09-05","review_status":"generated","generated_at":"2026-09-05T16:13:12.211Z"},{"id":"360a61f0-ca6a-4d32-9d46-91c43280638a","section":"what_moved","body_md":"This is the first measured window on record for open-source content management systems. It runs 2026-08-08 to 2026-09-05, 28 days, and covers 62 sampled answers across 5 engines. There is no prior window to compare against, so no product entered or left the top ten and no share change can be reported yet.\n\nThe order as measured now: Strapi first at 71% of 62 sampled answers, Drupal second at 64.5%, WordPress third at 59.7%, Directus fourth at 53.2%, Payload fifth at 48.4%, all over the same 62 answers in the window to 2026-09-05. Confidence intervals overlap across the group, with Strapi at 58.7 to 80.8 and Drupal at 52.1 to 75.3. WordPress had the highest first-recommendation rate in the top five at 43.2%, from 16 first-recommendation runs. Directus recorded 0.","window_to":"2026-09-05","review_status":"generated","generated_at":"2026-09-05T16:13:12.214Z"}]}