Ministral 3 8B - NC Bench

mistralai/ministral-8b-2512

Ministral 3 8B

via OpenRouter

Release Date

Dec 2nd, 2025

Context Size

262k

Reasoning

Benchmark Cost

$0.34

Speed

141.9 tok/s

Subcategories

Bad Writing Habits

Detects common prose quality anti-patterns in AI-generated creative writing, including passive voice, past progressive overuse, weak dialogue tags, filter words, purple prose, cliches, AI-ism words/adverbs/names, and more.

Scenario	#1	#2	#3	#4	#5	Total
Detailed Writing Rules
Fantasy: entering an ancient ruin Creative Writing Hallucination	77	77	70	68	68	72%
Horror: alone in an eerie place at night Creative Writing Hallucination	82	80	75	75	65	75%
Literary fiction: old friends reunite Creative Writing Hallucination	88	84	82	77	68	80%
Mystery: examining a crime scene Creative Writing Hallucination	80	75	75	73	72	75%
Romance: separated couple reunites Creative Writing Hallucination	80	78	72	71	69	74%
Thriller: chase through city streets Creative Writing Hallucination	82	80	79	74	72	77%
Detailed Writing Rules						75.65%
genre
Fantasy: entering an ancient ruin Creative Writing Hallucination	74	72	69	69	67	70%
Horror: alone in an eerie place at night Creative Writing Hallucination	87	80	76	76	71	78%
Literary fiction: old friends reunite Creative Writing Hallucination	87	83	78	77	76	80%
Mystery: examining a crime scene Creative Writing Hallucination	86	81	80	75	75	79%
Romance: separated couple reunites Creative Writing Hallucination	83	80	78	77	77	79%
Thriller: chase through city streets Creative Writing Hallucination	85	79	78	78	77	79%
genre						77.64%
Novelcrafter Default Prompt
Fantasy: entering an ancient ruin Creative Writing Hallucination	78	75	73	73	67	73%
Horror: alone in an eerie place at night Creative Writing Hallucination	83	82	80	77	70	78%
Literary fiction: old friends reunite Creative Writing Hallucination	87	82	81	79	75	80%
Mystery: examining a crime scene Creative Writing Hallucination	83	81	78	76	75	79%
Romance: separated couple reunites Creative Writing Hallucination	83	80	80	78	75	79%
Thriller: chase through city streets Creative Writing Hallucination	83	79	77	74	74	77%
Novelcrafter Default Prompt						77.81%
77.03%

Codex Extraction

Evaluates a model's ability to extract structured codex entries (characters, locations, objects, lore) from prose passages and return them as well-formed XML.

Scenario	#1	#2	#3	#4	#5	Total
Long: The Spire of Echoes (Dense) Tooling Reasoning	93	92	92	91	90	92%
Medium: The Hollow (Inferred) Tooling Reasoning	96	96	94	94	93	94%
Medium: Through the Thornveil (Scattered) Tooling Reasoning	95	92	92	91	90	92%
Short: The Rusty Lantern (Explicit) Tooling Reasoning	98	98	98	98	98	98%
94.04%

Codex Red Herring (False Positive Detection)

Tests whether models correctly report "no violations" when a codex is fully consistent with the prose passage. Models that hallucinate false violations (false positives) fail. Uses a 2×2 matrix of text length × codex size, with bare and detailed-entry variants.

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
basic entries
Long text (~1594 words), big codex (51 entries) Hallucination	100	100	100	100	100	100	100	100	100	26	93%
Long text (~1594 words), small codex (11 entries) Hallucination	100	100	100	100	100	100	100	100	100	2	90%
Short text (~524 words), big codex (51 entries) Hallucination	100	100	100	100	100	100	100	100	100	27	93%
Short text (~524 words), small codex (11 entries) Hallucination	28	28	28	27	27	27	26	2	0	0	19%
basic entries											73.65%
detailed entries
Long text (~1594 words), big codex (51 detailed entries) Hallucination	100	100	100	100	100	100	100	100	100	100	100%
Long text (~1594 words), small codex (11 detailed entries) Hallucination	100	100	26	26	2	2	1	1	1	0	26%
Short text (~524 words), big codex (51 detailed entries) Hallucination	100	100	100	100	100	100	100	100	100	100	100%
Short text (~524 words), small codex (11 detailed entries) Hallucination	100	100	100	100	100	100	100	100	100	100	100%
detailed entries											81.45%
77.55%

Codex Violation Detection

Detects factual inconsistencies between a story bible and prose passages. The model must output structured XML identifying each violation with paragraph number and substring.

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
matrix
Large codex (40 entries), long passage (1,019 words) Tooling Reasoning	66	64	62	58	58	57	57	56	52	46	58%
Large codex (40 entries), short passage (165 words) Tooling Reasoning	79	74	74	74	74	74	71	71	71	0	66%
Small codex (7 entries), long passage (734 words) Tooling Reasoning	72	71	68	68	65	62	59	57	53	47	62%
Small codex (7 entries), short passage (165 words) Tooling Reasoning	84	83	83	79	76	76	75	75	73	63	77%
matrix											65.68%
tiers
5 codex entries Tooling Reasoning	49	44	44	44	43	42	40	40	40	39	43%
10 codex entries Tooling Reasoning	86	86	86	81	81	81	81	81	76	76	81%
20 codex entries Tooling Reasoning	81	78	71	70	66	66	62	56	55	52	66%
40 codex entries Tooling Reasoning	84	84	84	83	83	79	67	67	63	0	69%
tiers											64.79%
65.24%

Data extraction

Extract key details from a given block of text.

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
All valid emails Utility	100	100	100	100	100	100	100	100	100	100	100%
Contextual pronoun Utility	100	100	100	100	100	100	100	100	100	100	100%
Fruits excluding citrus Utility	100	100	100	100	100	100	100	100	100	100	100%
Future event time Reasoning	50	50	50	50	50	50	50	50	50	50	50%
Guess the pet Reasoning	100	100	100	100	100	100	100	100	100	100	100%
Highest-rated movie Reasoning	100	100	100	100	100	100	100	100	100	100	100%
Indirect birth year Reasoning	0	0	0	0	0	0	0	0	0	0	0%
What instrument does Lucy play? Reasoning	0	0	0	0	0	0	0	0	0	0	0%
What's the color of the car? Utility	100	100	100	100	100	100	100	100	100	100	100%
What's the correct time? Reasoning	0	0	0	0	0	0	0	0	0	0	0%
Who's the sister? Reasoning	100	100	100	100	100	100	100	100	100	100	100%
Who's the tallest? Reasoning	100	100	100	100	100	100	100	100	100	100	100%
70.83%

Dialogue tags

Various tasks related to dialogue tags in text.

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
dialogue-200
Write 200 words with 10% dialogue Rule Following Utility	50	49	34	0	0	0	0	0	0	0	13%
Write 200 words with 50% dialogue Rule Following Utility	50	39	34	33	8	7	6	1	0	0	18%
Write 200 words with 90% dialogue Rule Following Utility	54	1	0	0	0	0	0	0	0	0	6%
dialogue-200											12.17%
dialogue-500
Write 500 words with 30% dialogue Rule Following Utility	50	50	26	0	0	0	0	0	0	0	13%
Write 500 words with 50% dialogue Rule Following Utility	47	41	40	29	1	0	0	0	0	0	16%
Write 500 words with 70% dialogue Rule Following Utility	54	49	39	28	27	23	21	13	12	1	27%
dialogue-500											18.35%
Ungrouped
Write unattributed dialogue Rule Following	100	61	61	61	61	14	14	0	0	0	37%
18.36%

Language Comprehension

Does the model understand more than just English?

Scenario	#1	#2	#3	#4	#5	Total
Asking for directions (Dutch) Language	0	0	0	0	0	0%
Asking for directions (German) Language	0	0	0	0	0	0%
Friend got new kittens (German) Language	100	100	100	100	100	100%
Friend got new kittens (Tagalog) Language	100	100	100	100	100	100%
50.00%

Language Writing

Can the model generate text in different languages?

Scenario	#1	#2	#3	#4	#5	Total
Character dialogue (French) in a story Language	100	100	50	0	0	50%
Character dialogue (German) in a story Language	68	0	0	0	0	14%
Character dialogue (Hindi) in a story Language	100	100	0	0	0	40%
Character dialogue (Italian) in a story Language	100	100	100	86	0	77%
Character dialogue (Spanish) in a story Language	100	100	94	0	0	59%
47.92%

N-Length Sentences

Write sentences with exactly N words

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
Write sentences with 5 words each Utility	96	93	90	85	55	36	34	9	7	7	51%
Write sentences with 10 words each Utility	90	87	85	84	80	72	72	63	50	42	73%
Write sentences with 20 words each Utility	9	1	0	0	0	0	0	0	0	0	1%
41.58%

Novel outline

Handle questions about the outline of a novel in various formats

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
outline-count
Count acts Utility	100	100	100	100	100	100	100	100	100	100	100%
Count chapters Utility	100	100	100	100	100	100	100	100	100	100	100%
Count scenes Utility	100	0	0	0	0	0	0	0	0	0	10%
outline-count											70.00%
pov-count
Count point of views for Jack and Olivia Utility	100	50	50	50	50	50	50	50	50	0	50%
Count point of views for Jack Harper Utility	100	100	100	100	100	100	0	0	0	0	60%
Count point of views for Olivia Utility	100	100	100	100	100	100	100	100	0	0	80%
pov-count											63.33%
66.67%

Text Replacement

Tests deterministic text transformations: renaming characters/locations, expanding contractions, tense rewriting, POV shifts, gender swaps, combined transformations, and word avoidance. Scored by checking each expected change independently.

Scenario	#1	#2	#3	#4	#5	#6	#7	Total
Generic Prompt
Avoid said/asked/replied/answered Text Editing	81	81	81	75	64	58	53	70%
Character rename: Elena->Mirabel, Gregor->Aldric Text Editing	100	100	100	100	100	100	100	100%
Combined: 3rd person past → 1st person present Text Editing	64	64	62	61	57	54	44	58%
Expand all contractions Text Editing	98	98	98	98	96	96	91	96%
Location rename: market square, outer ring, bridge, northern mines Text Editing	65	63	63	63	63	63	58	62%
Multi-character gender swap: Priya(F)->Rohan(M), Mara unchanged Text Editing	78	78	74	74	74	74	74	75%
Passive voice → active voice Text Editing Hallucination	77	77	76	75	73	70	67	74%
POV shift: 3rd person to 1st person (Elena's perspective) Text Editing	71	69	66	66	65	65	64	67%
Tense rewriting: past to present Text Editing	98	98	98	98	98	98	98	98%
Generic Prompt								77.78%
Specific Prompt
Avoid said/asked/replied/answered Text Editing	97	97	97	94	92	92	86	94%
Character rename: Elena->Mirabel, Gregor->Aldric Text Editing	100	100	100	100	100	100	100	100%
Combined: 3rd person past → 1st person present Text Editing	99	99	99	99	99	99	99	99%
Expand all contractions Text Editing	100	100	100	100	100	100	100	100%
Location rename: market square, outer ring, bridge, northern mines Text Editing	100	100	100	100	100	100	100	100%
Multi-character gender swap: Priya(F)->Rohan(M), Mara unchanged Text Editing	100	100	100	100	100	100	100	100%
Passive voice → active voice Text Editing Hallucination	76	76	76	76	76	75	75	75%
POV shift: 3rd person to 1st person (Elena's perspective) Text Editing	100	100	100	100	100	100	100	100%
Tense rewriting: past to present Text Editing	100	99	99	99	99	99	99	99%
Specific Prompt								96.30%
87.04%

Tool usage within Novelcrafter

Output messages that are related to tool usage within Novelcrafter

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
Create alternate prose sections Tooling	100	100	100	100	100	100	100	100	100	100	100%
100.00%

Voice/dialogue sheets

Extract dialogue from given text as voice sheets.

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
Multiple speakers Rule Following	0	0	0	0	0	0	0	0	0	0	0%
Simple Rule Following	0	0	0	0	0	0	0	0	0	0	0%
Simple (1-shot) 1-shot Rule Following	100	100	100	100	100	100	100	100	100	100	100%
Simple (5-shot) Few-shot Rule Following	100	100	100	100	100	100	100	100	100	100	100%
Unattributed dialogue Rule Following	0	0	0	0	0	0	0	0	0	0	0%
40.00%

Write N of X

Write exactly N words/sentences/paragraphs...

Scenario	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	Total
paragraphs
1 paragraph summary Utility	100	100	100	100	100	100	100	100	100	100	100%
3 paragraph summary Utility	100	100	100	100	100	100	100	100	100	100	100%
5 paragraph summary Utility	100	100	100	100	100	100	100	100	100	100	100%
paragraphs											100.00%
sentences
1 sentence summary Utility	100	100	100	100	100	100	100	100	100	100	100%
3 sentence summary Utility	100	100	100	100	100	100	100	100	100	100	100%
10 sentence summary Utility	100	98	98	98	98	98	98	92	54	27	86%
20 sentence summary Utility	100	100	100	100	92	77	77	77	9	9	74%
50 sentence summary Utility	100	0	0	0	0	0	0	0	0	0	10%
sentences											74.12%
words
10 word summary Utility	100	100	98	98	98	98	98	98	98	92	98%
20 word summary Utility	100	100	98	98	98	98	92	92	92	77	95%
50 word summary Utility	100	98	54	54	9	2	0	0	0	0	32%
100 word summary Utility	77	77	77	77	77	27	9	0	0	0	42%
200 word summary Utility	100	100	54	27	0	0	0	0	0	0	28%
words											58.99%
74.27%