Test results
SEO Meta Writer: test results
Tested 2026-09-30, skill version 1.0.4 at the time of loading this page. We run every skill on a strong and a weak model before it is listed, and publish both verdicts, including where the weak one fails.
Verdicts
- Date
- 2026-09-30
- Strong · claude-sonnet-5-5 (Claude Code alias "sonnet")
- 6 of 6 cases pass (en, bg, de, es, ru, thin page): right language, title within 60 and description within 120-160 characters, key facts kept, no clickbait, and the thin page gets an honest Note line instead of invented detail.
- Weak · claude-haiku-4-5-20251001 (Claude Code alias "haiku")
- 6 of 6 pass the mechanical checks, but the wording is plainer: awkward Bulgarian ("30 дни връщане"), generic filler on the thin page ("let's discuss how we can help you"), and it spends 2-3x more output tokens than Sonnet counting characters (up to 13,000 for German).
With and without the skill
Tested 2026-10-03.
| Sonnet | Haiku | |||
|---|---|---|---|---|
| with | without | with | without | |
| Cases passed | 6/6 | 6/6 | 6/6 | 6/6 |
One run per model and case. No difference on these cases: both models kept the language and the length limits without the skill. On five harder cases Sonnet was still right without the skill; Haiku stretched facts without it and kept to them in three of four with it.
Same cases and the same checks with and without the skill. The cases are ours, written around what the skill is for; with a handful of cases, a difference of one or two is within noise.
Note
One run per case and model, no revision needed. Checks are mechanical (language, length limits by regex, key terms, forbidden hype words); they do not judge how persuasive a snippet is. Pixel width is not measured, only characters. No ranking is promised. Harder cases, 3 Oct 2026, one run each: without the skill, Sonnet still wrote accurate snippets (one title was 62 characters while it said 58); Haiku stretched facts: it offered a discount the page did not have, dropped "for urgent cases" from a same-day promise, added an unstated handmade claim and called a small firm specialists. With the skill, Haiku kept to the facts in three of those four cases (the handmade claim softened but stayed) and Sonnet's title fit at 56 characters.
What was not measured
- Models other than the two named above were not run.
- Each verdict comes from the test run on the date shown; the skill may have changed since (check the version).
- Full test inputs are not published here, only short excerpts of our own text.
- Results on your own texts, languages and domains can differ.