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Rewrite · 6 checks · max 400 tokens · benched 2026-09-16

DeepSeek V4 Pro vs DeepSeek V4 Flash 0423 vs DeepSeek V4.1 Flash on jargon to plain english for a 12-year-old

DeepSeek models side by side on "Jargon to plain English for a 12-year-old": DeepSeek V4 Flash 0423 scores 9/10; DeepSeek V4 Flash 0423 is the cheapest answer scoring 8+ at $0.03 per 1,000 runs. Outputs, checks, judge reasons, latency and cost.

The prompt every model received

User

Rewrite this paragraph so a 12-year-old would understand it. Keep it under 70 words and do not use the words "leverage", "synergy" or "paradigm". Output only the rewritten paragraph.

Paragraph: Our next-generation battery architecture leverages a solid-state electrolyte paradigm to achieve synergy between energy density and thermal stability, enabling a 40% increase in range while mitigating the combustion risk profile associated with legacy lithium-ion chemistries.

Rubric for the judge: Simple vocabulary, keeps the 40% range gain and the safety point, under 70 words, banned words absent.

Side by side

Every cell is one OpenRouter call at temperature 0 with the prompt's token cap and reasoning effort "low" where the model supports it. Cost is usage × the catalogue rate in models.json. Quality is one judge call to anthropic/claude-haiku-4.5 against the prompt's rubric, cached per prompt version.

DeepSeek V4 Pro

deepseek/deepseek-v4-pro

9/10
Latency
1.7s
Cost
$0.00049
Per 1,000
$0.49

93 in · 293 out (243 reasoning) · 41 words · checks 6/6

  • max_words
  • contains
  • contains
  • not_contains
  • not_contains
  • not_contains
Our new battery uses a solid material inside instead of a liquid. This lets it pack more power and stay cooler, so it's safer. It gives 40% more driving range and is much less likely to catch fire than old batteries.

Judge: Excellent rewrite: simple vocabulary, includes 40% range gain and safety benefits, avoids all banned words, and is 48 words—well under the 70-word limit with clear 12-year-old appropriate language.

DeepSeek V4 Flash 0423

deepseek/deepseek-v4-flash

9/10
top judge scorecheapest scoring 8+
Latency
681ms
Cost
$3.2e-5
Per 1,000
$0.03

93 in · 195 out (144 reasoning) · 41 words · checks 6/6

  • max_words
  • contains
  • contains
  • not_contains
  • not_contains
  • not_contains
Our new battery uses a solid material instead of liquid. This lets it store more energy without getting too hot. Electric cars can go 40% farther, and it's much safer than old lithium batteries because it won't catch fire as easily.

Judge: Excellent rewrite: simple vocabulary, includes 40% range gain and safety benefits, avoids all banned words, and is 48 words (well under 70-word limit); only minor issue is 'solid material' could be slightly clearer for a 12-year-old.

DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

9/10
Latency
670ms
Cost
$0.00021
Per 1,000
$0.21

119 in · 313 out (264 reasoning) · 41 words · checks 6/6

  • max_words
  • contains
  • contains
  • not_contains
  • not_contains
  • not_contains
Our new battery uses a solid material instead of liquid inside. This helps it store more power and stay cooler, so cars can go 40% farther on a charge. It is also less likely to catch fire than older lithium-ion batteries.

Judge: Excellent simplification for a 12-year-old, includes the 40% range gain and safety benefit, avoids all banned words, and is 48 words—well under the 70-word limit; only minor issue is 'lithium-ion' might still be slightly technical but is necessary context.

Frequently asked

What does this prompt test?

Rewrite: Simple vocabulary, keeps the 40% range gain and the safety point, under 70 words, banned words absent. The deterministic checks are max_words, contains, contains, not_contains, not_contains, not_contains.

Which model should I pick for this task?

If the judge's bar of 8/10 is good enough for you, DeepSeek V4 Flash 0423 at $0.03 per 1,000 runs. If you need the top score, DeepSeek V4 Flash 0423 at $0.03 per 1,000 runs.

Same prompt, other families

Run it yourself

Re-run this prompt on DeepSeek with your own OpenRouter key, or tweak the wording and see what changes.

More DeepSeek prompts

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