Summarise · 3 checks · max 400 tokens · benched 2026-09-16

DeepSeek V4 Pro vs DeepSeek V4 Flash 0423 vs DeepSeek V4.1 Flash on meeting notes to exactly three bullets

DeepSeek models side by side on "Meeting notes to exactly three bullets": DeepSeek V4.1 Flash scores 10/10; DeepSeek V4.1 Flash is the cheapest answer scoring 8+ at $0.26 per 1,000 runs. Outputs, checks, judge reasons, latency and cost.

The prompt every model received

System

You are a concise assistant. Output only what is asked for.

User

Turn these meeting notes into exactly three bullet points. Each bullet starts with "- " and is at most 20 words. Output nothing except the three bullets.

Notes: Launch of the new billing page moves from 18 Sept to 25 Sept because the tax calculation for EU customers still fails for VAT-exempt businesses. Priya owns the fix and will demo it Thursday. Marketing will hold the announcement email until the fix is verified. Separately, the team agreed to drop support for the legacy CSV export in Q1 next year and to notify affected customers in November.

Rubric for the judge: Three bullets that capture the delayed launch, the VAT fix owner, and the CSV export decision; nothing extra.

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: 2.5s
Cost: $0.00103
Per 1,000: $1.03

130 in · 589 out (528 reasoning) · 46 words · checks 2/3

regex
max_words
contains

- Billing page launch delayed to Sept 25 because EU VAT-exempt tax calculation fails; Priya fixing, demo Thursday.
- Marketing will hold announcement email until Priya's fix is verified.
- Team decided to drop legacy CSV export support in Q1 next year, notify customers in November.

Judge: All three bullets capture required points (delayed launch, VAT fix owner/demo, CSV decision), stay under 20 words each, and include no extra commentary, though the first bullet is slightly dense.

DeepSeek V4 Flash 0423

deepseek/deepseek-v4-flash

10/10

Latency: 317ms
Cost: $0.00029
Per 1,000: $0.29

211 in · 2079 out (2033 reasoning) · 34 words · checks 3/3

regex
max_words
contains

- Billing page launch delayed to 25 Sept due to EU tax bug.
- Priya handles the fix; demo on Thursday; marketing holds.
- Legacy CSV export removed in Q1; notify customers in November.

Judge: Three bullets, each under 20 words, capturing all three required points (delayed launch, VAT fix owner/demo, CSV export decision) with no extra commentary.

DeepSeek V4.1 Flash

deepseek/deepseek-v4.1-flash

10/10

top judge scorecheapest scoring 8+

Latency: 4.6s
Cost: $0.00026
Per 1,000: $0.26

156 in · 393 out (329 reasoning) · 49 words · checks 3/3

regex
max_words
contains

- Billing page launch moved from 18 Sept to 25 Sept due to EU VAT-exempt tax calculation failure.
- Priya owns the fix, demos it Thursday; Marketing holds announcement email until fix is verified.
- Team drops legacy CSV export in Q1 next year; notify affected customers in November.

Judge: Three bullets, each under 20 words, capturing all three required points (delayed launch, VAT fix owner, CSV export decision) with no extra commentary.

Frequently asked

What does this prompt test?

Summarise: Three bullets that capture the delayed launch, the VAT fix owner, and the CSV export decision; nothing extra. The deterministic checks are regex, max_words, contains.

Which model should I pick for this task?

If the judge's bar of 8/10 is good enough for you, DeepSeek V4.1 Flash at $0.26 per 1,000 runs. If you need the top score, DeepSeek V4.1 Flash at $0.26 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.