Labs Promise Plainer Prose, and the Tells Change Shape

Both big labs now say their newest models write more plainly. Anthropic said Opus 5.5 "communicates more naturally than prior models," and a Claude fine-tuning engineer wrote on X that it is the first release aimed squarely at sentence clarity and overly dense info dumps, as Memeburn reports. OpenAI says its GPT-6 models use less jargon and give slightly shorter answers, according to Kingy.ai.

The measurements tell a more mixed story. A write-up of Graphite's follow-up study at Progressive Robot says Opus 5.5 still overuses 2,548 words and patterns, only 4 percent fewer than Opus 5. Graphite sells marketing services, so treat the numbers as a guide, not a verdict. The outlets even disagree on one figure: TechCrunch puts the word dependable at 23 times the human rate, while Gizmodo says 26. Our trend board now shows both.

The two families fail in opposite directions. Gizmodo reports that Opus 5.5 qualifies its claims less often than GPT-6 Astra and reaches for superlatives, while Astra leans on hedges. The phrase does not establish turns up 275 times more often in Astra text than in Claude text, and constructions like may provide and can provide are common too. One model overstates and the other hedges, which is why a single checklist keeps going stale.

Wikipedia's editor guide, updated for October 2026, lists the most common signs on the site as Markdown, AI edit summaries, disclaimers about sources, vague connection or association, and canned emphasis on media coverage. For your own drafts, the habit to catch is a sentence that comments on a fact instead of stating it. Try our draft checker and the fix-your-ai guide.