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

GLM 5.3 vs GLM 5.2 vs GLM 5.3 Flash on meeting notes to exactly three bullets

Z Ai models side by side on "Meeting notes to exactly three bullets": GLM 5.3 scores 10/10; GLM 5.3 Flash 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

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.

GLM 5.3

z-ai/glm-5.3

10/10

top judge score

Latency: 916ms
Cost: $0.00046
Per 1,000: $0.46

139 in · 60 out (1 reasoning) · 46 words · checks 3/3

regex
max_words
contains

- Billing page launch delayed from 18 Sept to 25 Sept due to failing EU VAT-exempt tax calculation.
- Priya owns the fix, demos Thursday; marketing holds announcement email until verification.
- Legacy CSV export support drops in Q1 next year; affected customers notified in November.

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

GLM 5.2

z-ai/glm-5.2

9/10

Latency: 2.4s
Cost: $0.00057
Per 1,000: $0.57

139 in · 244 out (176 reasoning) · 54 words · checks 3/3

regex
max_words
contains

- Billing page launch delayed to 25 Sept due to EU VAT-exempt tax calculation failure; Priya owns the fix.
- Marketing will hold the announcement email until the fix is verified; Priya will demo Thursday.
- Team agreed to drop legacy CSV export support in Q1 next year and notify affected customers in November.

Judge: All three bullets capture required information within 20-word limit with no extra commentary, though the first bullet slightly conflates two separate points (delay reason and owner).

GLM 5.3 Flash

z-ai/glm-5.3-flash

9/10

cheapest scoring 8+

Latency: 617ms
Cost: $2.6e-5
Per 1,000: $0.03

139 in · 63 out · 50 words · checks 3/3

regex
max_words
contains

- Billing page launch delayed to 25 Sept due to failing EU VAT-exempt tax calculations; Priya owns fix, demos Thursday.
- Marketing will hold the announcement email until the tax fix is verified.
- Legacy CSV export support drops in Q1 next year; affected customers will be notified in November.

Judge: All three bullets capture required points within 20-word limit with no extra commentary, though first bullet is slightly dense at 19 words.

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, GLM 5.3 Flash at $0.03 per 1,000 runs. If you need the top score, GLM 5.3 at $0.46 per 1,000 runs.

Same prompt, other families

Run it yourself

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