🥇 Claude 3.5 Sonnet
47 / 50 · 2.0‰ cent per runHuman voice
9/10
Specificity
9/10
Hook strength
9/10
Avoided AI-isms
10/10
Instruction adherence
10/10
Opens with a specific morning anecdote. Zero AI-isms. One short burst at the end lands.
Task: Write an opening paragraph for a blog post that doesn't sound AI-generated.
For long-form writing where human voice matters most, Claude 3.5 Sonnet remains the clear leader. DeepSeek V3 is a legitimate budget alternative — one of the only sub-dollar-per-million-tokens models that reliably avoids "elevate" and "delve". GPT-4o is competent but has a detectable corporate undertone the others don't.
Write the opening 150 words of a blog post titled "I spent 90 days using only AI for research — here's what broke". Rules: - First-person - Specific anecdote in the first 3 sentences - No AI-isms: no "navigating", "unlock", "game-changer", "delve", "elevate" - No "In today's world" or "In the ever-evolving" - Hemingway grade 7 or lower - Sentence variety: at least one short burst (5-8 words) and one longer explanatory sentence - Ends on a hook that makes me want to keep reading
| Rank | Model | Total /50 | Cost / run |
|---|---|---|---|
| 🥇 | Claude 3.5 Sonnet | 47 | 2.0‰ cent |
| 🥈 | DeepSeek V3 | 42 | 0.6‰ cent |
| 🥉 | GPT-4o | 40 | 4.0‰ cent |
| #4 | Gemini 2.0 Flash | 35 | 0.4‰ cent |
Opens with a specific morning anecdote. Zero AI-isms. One short burst at the end lands.
Strong anecdote, specific hour-level detail. Caught itself before using "delve" (good).
Clean prose but used "In those first few weeks" as a soft "In today's world" variant. Specificity was OK but less visceral.
Felt slightly templated. Did open with an anecdote but the hook at the end was generic ("the results surprised me").