Aion 3.0 Mini - NC Bench

aion-labs/aion-3.0-mini

Aion 3.0 Mini

via OpenRouter

Release Date

May 14th, 2026

Context Size

128k

Reasoning

Yes

Benchmark Cost

$4.39

Speed

39.1 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	89	86	85	78	75	83%
Horror: alone in an eerie place at night Creative Writing Hallucination	92	90	88	86	85	88%
Literary fiction: old friends reunite Creative Writing Hallucination	89	88	84	84	78	85%
Mystery: examining a crime scene Creative Writing Hallucination	95	92	85	84	80	87%
Romance: separated couple reunites Creative Writing Hallucination	91	89	85	84	82	86%
Thriller: chase through city streets Creative Writing Hallucination	91	89	88	88	82	88%
Detailed Writing Rules						86.12%
genre
Fantasy: entering an ancient ruin Creative Writing Hallucination	96	77	75	75	70	78%
Horror: alone in an eerie place at night Creative Writing Hallucination	87	84	84	81	80	83%
Literary fiction: old friends reunite Creative Writing Hallucination	84	83	83	81	77	82%
Mystery: examining a crime scene Creative Writing Hallucination	86	82	81	81	78	82%
Romance: separated couple reunites Creative Writing Hallucination	83	82	82	80	76	81%
Thriller: chase through city streets Creative Writing Hallucination	84	84	82	81	71	81%
genre						81.10%
Novelcrafter Default Prompt
Fantasy: entering an ancient ruin Creative Writing Hallucination	84	82	80	77	73	79%
Horror: alone in an eerie place at night Creative Writing Hallucination	86	85	82	82	81	83%
Literary fiction: old friends reunite Creative Writing Hallucination	88	86	85	78	76	83%
Mystery: examining a crime scene Creative Writing Hallucination	93	85	84	81	77	84%
Romance: separated couple reunites Creative Writing Hallucination	88	87	85	84	82	85%
Thriller: chase through city streets Creative Writing Hallucination	87	86	86	82	77	84%
Novelcrafter Default Prompt						82.89%
83.37%

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	99	98	98	98	97	98%
Medium: The Hollow (Inferred) Tooling Reasoning	95	94	40	34	0	53%
Medium: Through the Thornveil (Scattered) Tooling Reasoning	97	96	94	0	0	57%
Short: The Rusty Lantern (Explicit) Tooling Reasoning	100	99	98	96	90	97%
76.07%

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	25	25	85%
Long text (~1594 words), small codex (11 entries) Hallucination	100	100	100	100	100	100	100	100	100	100	100%
Short text (~524 words), big codex (51 entries) Hallucination	100	100	100	100	100	100	100	50	50	50	85%
Short text (~524 words), small codex (11 entries) Hallucination	100	100	100	100	100	50	50	50	38	17	70%
basic entries											85.10%
detailed entries
Long text (~1594 words), big codex (51 detailed entries) Hallucination	100	100	100	100	100	100	100	100	100	50	95%
Long text (~1594 words), small codex (11 detailed entries) Hallucination	100	100	100	100	100	100	100	50	50	17	82%
Short text (~524 words), big codex (51 detailed entries) Hallucination	100	100	100	100	100	100	100	100	50	50	90%
Short text (~524 words), small codex (11 detailed entries) Hallucination	100	100	100	100	100	100	100	50	42	42	83%
detailed entries											87.50%
86.30%

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	99	99	97	90	90	0	0	0	0	0	48%
Large codex (40 entries), short passage (165 words) Tooling Reasoning	96	96	94	93	91	0	0	0	0	0	47%
Small codex (7 entries), long passage (734 words) Tooling Reasoning	100	100	95	88	3	3	0	0	0	0	39%
Small codex (7 entries), short passage (165 words) Tooling Reasoning	100	100	100	100	100	100	100	3	3	0	71%
matrix											51.05%
tiers
5 codex entries Tooling Reasoning	100	100	100	100	0	0	0	0	0	0	40%
10 codex entries Tooling Reasoning	100	79	72	33	3	3	3	0	0	0	30%
20 codex entries Tooling Reasoning	100	100	96	96	96	92	85	3	0	0	67%
40 codex entries Tooling Reasoning	100	97	92	92	0	0	0	0	0	0	38%
tiers											43.55%
47.30%

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	50	95%
Fruits excluding citrus Utility	100	100	100	100	100	100	100	100	100	100	100%
Future event time Reasoning	100	100	100	100	100	100	100	100	100	100	100%
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	50	0	85%
Indirect birth year Reasoning	100	100	100	100	100	100	100	100	100	100	100%
What instrument does Lucy play? Reasoning	100	100	100	100	100	100	100	100	100	100	100%
What's the color of the car? Utility	100	100	100	100	100	100	100	100	100	100	100%
Who's the sister? Reasoning	100	100	100	100	100	100	100	100	100	50	95%
Who's the tallest? Reasoning	100	100	100	100	100	100	100	100	100	100	100%
97.73%

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	100	100	100	100	97	91	90	50	50	0	78%
Write 200 words with 50% dialogue Rule Following Utility	99	91	50	50	45	41	2	0	0	0	38%
Write 200 words with 90% dialogue Rule Following Utility	66	50	50	50	49	34	34	21	18	0	37%
dialogue-200											50.95%
dialogue-500
Write 500 words with 30% dialogue Rule Following Utility	49	48	46	31	26	2	0	0	0	0	20%
Write 500 words with 50% dialogue Rule Following Utility	50	26	14	0	0	0	0	0	0	0	9%
Write 500 words with 70% dialogue Rule Following Utility	50	47	47	34	24	4	0	0	0	0	21%
dialogue-500											16.58%
Ungrouped
Write unattributed dialogue Rule Following	100	100	100	100	100	100	100	100	100	0	90%
41.80%

Language Comprehension

Does the model understand more than just English?

Scenario	#1	#2	#3	#4	#5	Total
Asking for directions (Dutch) Language	100	100	100	100	0	80%
Asking for directions (German) Language	100	100	100	100	0	80%
Friend got new kittens (German) Language	100	100	100	100	100	100%
Friend got new kittens (Tagalog) Language	100	100	100	100	100	100%
90.00%

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	100	88	86	95%
Character dialogue (German) in a story Language	100	100	100	100	94	99%
Character dialogue (Hindi) in a story Language	100	100	100	100	94	99%
Character dialogue (Italian) in a story Language	100	100	100	100	73	95%
Character dialogue (Spanish) in a story Language	100	100	100	100	100	100%
97.35%

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	100	100	100	100	100	100	100	100	100	88	99%
Write sentences with 10 words each Utility	100	100	100	100	98	97	97	97	26	11	83%
Write sentences with 20 words each Utility	100	100	100	100	100	100	100	100	100	0	90%
90.49%

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	0	90%
Count scenes Utility	100	100	100	100	100	100	100	100	100	100	100%
outline-count											96.67%
pov-count
Count point of views for Jack and Olivia Utility	100	100	100	100	100	100	100	100	50	50	90%
Count point of views for Jack Harper Utility	100	100	100	100	100	100	100	100	100	100	100%
Count point of views for Olivia Utility	100	100	100	100	100	100	100	100	0	0	80%
pov-count											90.00%
93.33%

Relationship tree

Extracts a deterministic XML family and relationship tree from cumulative literary prose.

Scenario	#1	#2	#3	#4	#5	Total
Core relationship tree Tooling Reasoning Hallucination	96	90	90	86	73	87%
Family relationship tree Tooling Reasoning Hallucination	85	80	78	46	46	67%
77.23%

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	100	100	100	100	100	100	100	100%
Character rename: Elena->Mirabel, Gregor->Aldric Text Editing	100	100	100	100	100	100	0	86%
Combined: 3rd person past → 1st person present Text Editing	100	99	99	99	99	61	0	80%
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	96	96	96	98%
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	97	97	96	96	96	96	93	96%
POV shift: 3rd person to 1st person (Elena's perspective) Text Editing	100	100	100	100	100	100	0	86%
Tense rewriting: past to present Text Editing	99	97	97	96	93	89	81	93%
Generic Prompt								93.12%
Specific Prompt
Avoid said/asked/replied/answered Text Editing	100	100	100	100	100	61	33	85%
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	100	100	100	100	99	99	99	100%
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	99	99	99	99	99	98	20	88%
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	100	100	100	100	100	96	99%
Specific Prompt								96.87%
94.99%

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	33	0	83%
83.33%

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	100	0	0	0	0	0	0	0	0	0	10%
Simple Rule Following	100	100	0	0	0	0	0	0	0	0	20%
Simple (1-shot) 1-shot Rule Following	100	100	100	100	100	100	100	100	0	0	80%
Simple (5-shot) Few-shot Rule Following	100	100	100	100	100	100	100	100	100	100	100%
Unattributed dialogue Rule Following	100	100	100	100	100	100	100	0	0	0	70%
56.00%

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	27	93%
3 sentence summary Utility	100	100	100	100	100	100	100	100	100	100	100%
10 sentence summary Utility	100	100	100	100	100	100	100	100	100	98	100%
20 sentence summary Utility	100	100	100	100	100	100	100	100	100	100	100%
50 sentence summary Utility	100	100	100	100	100	100	100	100	100	2	90%
sentences											96.54%
words
10 word summary Utility	100	100	100	100	100	100	100	100	98	0	90%
20 word summary Utility	100	100	100	100	100	100	100	100	100	100	100%
50 word summary Utility	100	100	100	100	100	100	77	77	27	0	78%
100 word summary Utility	100	100	100	100	100	100	100	100	98	54	95%
200 word summary Utility	100	0	0	0	0	0	0	0	0	0	10%
words											74.64%
88.92%