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

GPT-5.5 vs GPT-5.4 vs GPT-5.4 mini vs GPT-5.4 Nano vs GPT-5.3-Codex on meeting notes to exactly three bullets

OpenAI models side by side on "Meeting notes to exactly three bullets": GPT-5.4 Nano scores 10/10; GPT-5.4 Nano is the cheapest answer scoring 8+ at $0.12 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.

GPT-5.5

openai/gpt-5.5

10/10
Latency
525ms
Cost
$0.00296
Per 1,000
$2.96

136 in · 76 out (15 reasoning) · 45 words · checks 3/3

  • regex
  • max_words
  • contains
- Billing page launch moves to 25 Sept due to EU VAT-exempt tax calculation issues.
- Priya owns the fix and will demo it Thursday; marketing holds announcement until verification.
- Legacy CSV export support ends in Q1 next year; affected customers notified 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.

GPT-5.4

openai/gpt-5.4

10/10
Latency
384ms
Cost
$0.00160
Per 1,000
$1.60

136 in · 84 out (15 reasoning) · 53 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 failures.
- Priya owns the fix and will demo it Thursday; marketing delays the announcement email until verification.
- Team will drop legacy CSV export support in Q1 next year and notify affected customers in November.

Judge: All three bullets are present, each under 20 words, capture the required information (delayed launch, VAT fix owner, CSV decision), and no extra commentary is included.

GPT-5.4 mini

openai/gpt-5.4-mini

10/10
Latency
401ms
Cost
$0.00048
Per 1,000
$0.48

136 in · 85 out (15 reasoning) · 52 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 failures.
- Priya owns the fix, will demo Thursday, and marketing will wait to send the announcement email.
- Legacy CSV export support ends in Q1 next year; affected customers will be notified in November.

Judge: All three bullets are present, capture the required information (delayed launch, VAT fix owner, CSV export decision), stay under 20 words each, and no extra commentary is included.

GPT-5.4 Nano

openai/gpt-5.4-nano

10/10
top judge scorecheapest scoring 8+
Latency
696ms
Cost
$0.00012
Per 1,000
$0.12

136 in · 73 out · 57 words · checks 3/3

  • regex
  • max_words
  • contains
- Billing page launch moved from 18 Sept to 25 Sept due to failing EU VAT calculations for VAT-exempt businesses.  
- Priya owns the fix and will demo it Thursday; marketing will delay the announcement email until verification.  
- Team agreed to end legacy CSV export support in Q1 next year and notify affected customers in November.

Judge: All three bullets are present, capture the required information (delayed launch, VAT fix owner, CSV export decision), stay under 20 words each, and contain nothing extra.

GPT-5.3-Codex

openai/gpt-5.3-codex

10/10
Latency
416ms
Cost
$0.00399
Per 1,000
$3.99

136 in · 268 out (200 reasoning) · 52 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 failures.
- Priya owns the fix and will demo it Thursday; marketing delays announcement email until verification.
- Team will drop legacy CSV export support in Q1 next year and notify affected customers in November.

Judge: All three bullets capture the required information (delayed launch, VAT fix owner, CSV export decision), each is under 20 words, properly formatted with '- ', and no extra commentary is included.

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, GPT-5.4 Nano at $0.12 per 1,000 runs. If you need the top score, GPT-5.4 Nano at $0.12 per 1,000 runs.

Same prompt, other families

Run it yourself

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

More OpenAI prompts

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