Summarise · 3 checks · max 400 tokens · benched 2026-09-16
Mistral AI models side by side on "One-sentence changelog summary": Ministral 3 8B 2512 scores 9/10; Ministral 3 8B 2512 is the cheapest answer scoring 8+ at $0.03 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.
mistralai/mistral-large-2512
126 in · 27 out · 14 words · checks 2/3
Release 4.7.0 introduces API rate limits, HMAC-signed webhooks, and fixes a large export bug.
Judge: Accurate single sentence under 30 words (13 words) that prioritizes rate limits and signed webhooks as required, with no preamble or bullet list.
mistralai/mistral-medium-3-5
138 in · 1600 out (1057 reasoning) · 0 words · checks 2/3
(empty output)
Judge: Output is empty; task explicitly required a one-sentence summary to be provided.
mistralai/mistral-small-2603
138 in · 848 out (554 reasoning) · 27 words · checks 2/3
API rate limit set to 600 requests/minute/key (HTTP 429 on overage), webhooks now HMAC-SHA256 signed (old mode removed in 4.9), and fixed exporting over 10,000 rows bug.
Judge: Accurate single sentence under 30 words (28 words), prioritizes rate limit and signed webhooks as required, no preamble or bullet list, though slightly dense phrasing.
mistralai/ministral-8b-2512
126 in · 49 out · 20 words · checks 2/3
The **4.7.0** update enforces a **600 RPM rate limit**, adds **HMAC-SHA256 webhook signing**, and fixes a **10,000+ row export bug**.
Judge: Accurate single sentence under 30 words (18 words), prioritizes rate limit and signed webhooks as required, but uses unnecessary bold formatting when plain text was requested.
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, Ministral 3 8B 2512 at $0.03 per 1,000 runs. If you need the top score, Ministral 3 8B 2512 at $0.03 per 1,000 runs.
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Re-run this prompt on Mistral AI with your own OpenRouter key, or tweak the wording and see what changes.
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