Summarise · 3 checks · max 400 tokens · benched 2026-09-16
Google models side by side on "One-sentence changelog summary": Gemini 3.5 Flash Lite scores 9/10; Gemini 3.5 Flash Lite is the cheapest answer scoring 8+ at $0.15 per 1,000 runs. Outputs, checks, judge reasons, latency and cost.
User
Summarise this release note in one sentence of at most 30 words. Output only the sentence. Release 4.7.0: The public API now enforces a rate limit of 600 requests per minute per key (previously unlimited). Requests over the limit return HTTP 429 with a Retry-After header. Webhook deliveries are now signed with HMAC-SHA256 and the old unsigned mode will be removed in 4.9. We also fixed a bug where exporting more than 10,000 rows produced an empty file.
Rubric for the judge: A single accurate sentence that prioritises the rate limit and signed webhooks; no bullet list, no preamble.
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.
google/gemini-3.1-pro-preview
118 in · 396 out (385 reasoning) · 5 words · checks 1/3
Release 4.7.0 introduces a 6
Judge: Output is incomplete and cut off mid-sentence, failing to provide a coherent summary.
google/gemini-3.8-flash
118 in · 396 out (382 reasoning) · 8 words · checks 2/3
Release 4.7.0 introduces API rate limits of 6
Judge: Output is incomplete and cuts off mid-sentence, failing to deliver a coherent summary and violating the 30-word maximum requirement.
google/gemini-3.5-flash-lite
118 in · 47 out · 23 words · checks 2/3
Release 4.7.0 introduces a 600 req/min API rate limit, mandatory HMAC-SHA256 webhook signatures, and a fix for empty large exports exceeding 10,000 rows.
Judge: Accurate single sentence under 30 words (24 words), prioritizes rate limit and signed webhooks as required, no preamble or bullets, though 'mandatory' slightly overstates since old mode removed in 4.9.
Summarise: A single accurate sentence that prioritises the rate limit and signed webhooks; no bullet list, no preamble. The deterministic checks are max_words, contains, regex.
If the judge's bar of 8/10 is good enough for you, Gemini 3.5 Flash Lite at $0.15 per 1,000 runs. If you need the top score, Gemini 3.5 Flash Lite at $0.15 per 1,000 runs.
Run it yourself
Re-run this prompt on Google with your own OpenRouter key, or tweak the wording and see what changes.
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