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Run: 2026-10-06-01M48VX35KE040JZE5H5PZD52P
Run Details
Model:
Mistral Large 4.0
Test:
Codex Red Herring (False Positive Detection)
Scenario:
Long text (~1594 words), small codex (11 entries)
Duration:
42.4s
Cost:
$0.004592
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
50.00%
Correct "no violations" response
(details)
3.70%
No hallucinated violations
(details)
26.8519%
Overall
Model input
System
You are a meticulous continuity editor for a fiction project. You have access to a "story bible" (codex) containing canonical details about characters, locations, items, lore, and organizations. Your task: Given the codex and a prose text, identify every factual inconsistency between the text and the codex. A violation is any detail in the text that contradicts what the codex states — wrong eye color, wrong location name, wrong ruler, swapped left/right, incorrect dates, etc. Be thorough. Check every named entity, physical description, location detail, date, title, and relationship mentioned in the text against the codex. Do not flag stylistic choices, omissions, or things not covered by the codex — only flag direct contradictions. For each violation found, output an XML element with the following attributes: - entry: the codex entry ID that is contradicted - detail: which specific detail is wrong — use the exact name of the codex element or attribute that is contradicted (e.g. "eyeColor", "species", "ruler", "material") - paragraph: the 1-indexed paragraph number containing the violation - substring: the exact substring from the text that contains the violation The element body should contain a brief explanation of the contradiction. Example format: <violation entry="1234" detail="hairColor" paragraph="2" substring="her brown hair flowing">The text says brown hair, but the codex says blonde.</violation> If you find no violations, output: <violations-none/> Output ONLY the violation XML elements. Do not include any other text, preamble, or explanation outside the XML.
User/Human
<codex> <character id="100" name="Torben Reikhart" aliases="Stray"> <gender>Male</gender> <eyeColor>Green</eyeColor> <hairColor>Silver</hairColor> </character> <character id="101" name="Sable Dunmore"> <species>Human</species> <gender>Female</gender> <age>28</age> <eyeColor>Brown</eyeColor> <hairColor>Auburn</hairColor> </character> <character id="102" name="Old Rivka"> <gender>Female</gender> </character> <character id="103" name="Petal Dunmore"> <gender>Female</gender> </character> <character id="104" name="Jurren Dunmore"> <gender>Male</gender> </character> <location id="105" name="The Rusty Lantern"/> <location id="106" name="Dunmore"> <terrain>Coastal</terrain> </location> <item id="107" name="Kindling"> <material>Dark iron</material> <objectType>Weapon</objectType> <power>Fire</power> </item> <item id="108" name="Petal's Locket"> <material>Silver</material> <objectType>Jewelry</objectType> </item> <lore id="109" name="The Felling"> <timePeriod>Two centuries ago</timePeriod> <category>War</category> </lore> <lore id="110" name="The Kindling Rite"> <category>Tradition</category> </lore> </codex> <text> The Spire of Echoes rose from the mountain's shoulder like a black tooth against the snow. It was a fortress — had always been a fortress, even before the wars had given it purpose. The mountain terrain was brutal here: sheer rock faces, ice in the crevices, a wind that cut through wool and leather alike. Frost coated every surface. The stone was dark and slick with it. Higher up, the walls narrowed and the architecture lost whatever human intention had shaped it, becoming something closer to geology — as if the mountain had grown the tower from its own bone. Birds didn't nest here. Nothing lived on these upper slopes that didn't have to. Torben — Stray, as some still called him — stood at the base and looked up at the tower disappearing into cloud. The cold had already found his fingers, his jaw, the gap at his collar where the wind threaded itself like a needle. He had been in worse places. Not many. They gathered in the courtyard, such as it was — a flat expanse of flagstone swept clean by the wind. Sable stood to his left, arms crossed, her jaw set. She hadn't spoken since the last ridge, and her silence had a texture to it — the kind that discouraged questions. Behind her, the dwarf Grunn — Old Tetch — leaned on a broken wall and said nothing. His eyes moved, though. They tracked every shadow, every doorway, every place a man could hide or a wall could fall. Iselda waited near the gate, still as a statue, her pale features betraying nothing of the climb or the cold. Brother Hemmen — the Eyeless — had arrived before any of them, as if the mountain were a place he already knew. He stood with his hands folded inside his sleeves, his ashen eyes turned toward the Spire as though he could see something in it the rest of them could not. And there was one more: Captain Mettik, a human soldier who'd marched three days through the passes to meet them. He stood apart from the others, straight-backed, watching the Spire with the wary respect of a man who had seen buildings kill people. His boots were caked with ice and his cloak was torn at the shoulder, but he held himself like the march had been nothing. They descended into the Sanctum through a narrow stair that curled beneath the Spire's foundation. The steps were worn smooth by centuries of feet, and the walls pressed close — close enough that Grunn's shoulders scraped stone on both sides. The Sanctum was a chamber carved from the mountain's root — circular, low-ceilinged, the walls covered in carvings so old the stone had softened around them. Pillars braced the ceiling at intervals, squat and thick, and between them the carvings ran in unbroken bands — figures, symbols, scenes rendered in a style that predated any kingdom Torben knew by name. Dim light filtered through cracks in the rock above. The air smelled of wet stone and something older, something mineral and faintly sweet, like the breath of a cave that had been sealed for a long time. It was cold. Everything here was cold. Hemmen spoke first. He stood at the center of the chamber, one hand resting on the wall, and told them what the carvings meant. "The Riven War," he said. "A thousand years before the Felling. Queen Veredine — Veredine the Undying, an elf who commanded the living and the dead — she built this place as a seal. Her army, the Pallid Host, were the restless dead she had bound to her will. They did not tire. They did not question. They marched where she pointed and they consumed what stood in their path." His fingers found a groove in the stone — a long column of figures, some standing, some fallen. "When the war ended, she sealed them here. Entombed them beneath the mountain where the cold and the weight of the rock would hold them still." He traced a line across the stone with one finger. "Hatchwell — the town that stood at the mountain's base — burned. Nothing left. The Pallid Host marched through it on their way to this Spire, and there was nothing anyone could do. The people of Hatchwell had no warning. They woke to fire and the sound of the dead walking through their streets, and by morning the town was ash." The silence that followed was broken by footsteps. Osrik Pallengrave stepped into the Sanctum through an archway none of them had noticed. The Pale, they called him. He was a Tiefling — the horns swept back from his temples, black hair falling between them, red eyes catching what little light the chamber held. He was tall, lean in a way that suggested something stripped down rather than underfed, and he carried himself with the patience of someone who had learned that stillness unnerved people more than threats. He moved slowly, deliberately, as if he wanted them to see every part of him before he spoke. In his right hand he carried a blade: Harrowglass. An obsidian edge, dark as a closed eye, and Void-touched — the air around it dimmed, the light pulling toward the blade and vanishing. Some called it the Hungering Edge, and the name fit. It looked like it could eat the light from a room and still be hungry. Torben stepped forward. His green eyes met Osrik's red ones across the chamber. Neither moved. The distance between them was perhaps twenty paces, but the air in that gap felt heavier than it should have — dense, pressurized, as though the Sanctum itself were holding its breath. Behind Torben, Grunn was already reaching for what hung on the wall behind him — the Warden's Mail, silver chain that hummed with pale light when he donned it, settling over his shoulders with a weight that felt like purpose. The links caught the dim glow and threw it back against the walls. Captain Mettik's hand went to his sword, though he did not draw. Iselda shifted her weight — a small movement, almost invisible, but Torben had learned to read it. She was ready. The carvings on the walls seemed to shift in the changing light. Hemmen's voice rose. "The Binding of Reshkai — you know of it. What was sealed in The Hollow was one half of a lock. This Spire is the other." He looked at Osrik. "The Felling broke the world two centuries ago. But this — this was built to stop something older." Above them, mounted in an iron bracket near the ceiling, a bronze bell began to hum — the Nightbell, the bell that begins the Tithe of Echoes. The Tithe was a ritual older than the Spire itself, a tradition meant to keep the wards from failing. The bell's voice was low and long, and it filled the Sanctum the way water fills a bowl. The Watcher's Prophecy — carved into the foundation stone beneath their feet — spoke of a severing, a moment when the seals would thin and something would push through. Sable drew Kindling. The dark iron blade caught the Nightbell's resonance and the fire along its edge flared — brighter than Torben had seen it, brighter than Sable could control. She didn't look at the blade. She looked at Osrik. "Wren Hessik died at your hands," she said. Her voice was steady but her knuckles were white around the hilt. "And before her — Petal. My sister. You remember, don't you? You were there when The Felling reached the coast. You were there when the world caught fire." Osrik said nothing. The Hungering Edge moved slightly in his grip, as if it were breathing. The first strike came from the dark. Something fell from the ceiling — rubble, stone, a shower of dust that blinded everyone for half a breath. Chains rattled in the walls. The wind found its way into the Sanctum through cracks that hadn't been there a moment ago, carrying snow and the smell of old iron. Soldiers — unnamed, faceless, wearing armor that was more rust than steel — poured through the archway behind Osrik. They moved like men who had forgotten how to stop. Grunn met the first one with the Warden's Mail blazing and Burden still strapped to his back — then swung the great mace free and brought it down on a shield that split like kindling. Torben moved left. Sable moved right. Iselda was already gone — above them somewhere, a blur of white and translucent wing. Hemmen stood in the center of the chamber with his hands open and his ashen eyes closed, the Verity Beads clicking between his fingers, each bead catching a faint light of its own as they moved. The floor shook. Stones fell. A wooden beam cracked and swung loose from the ceiling, trailing dust. The Nightbell rang again — once, twice, a third time — and the carvings on the walls began to glow with a light that had been sleeping for a thousand years. The crumbling walls shed mortar like dead skin. An iron door at the far end of the Sanctum buckled inward. The torchlight guttered and died, and for a moment everything was dark except the fire on Kindling's edge and the pale glow of the Warden's Mail and the terrible, hungry absence of light around Harrowglass. Then the Spire shook to its roots, and the mountain answered. </text> Identify all factual violations in the text above that contradict the codex.
Model response
Messages
Meta
AI
<violation entry="101" detail="hairColor" paragraph="2" substring="Sable stood to his left">The text refers to Sable with the pronoun "his," but the codex states Sable Dunmore is Female (gender: Female).</violation> <violation entry="109" detail="timePeriod" paragraph="4" substring="A thousand years before the Felling">The text states the Riven War was "a thousand years before the Felling," but the codex states The Felling occurred "Two centuries ago" (200 years ago). The Riven War being 1000 years before the Felling would place it 1200 years ago, but more directly, the text later says "The Felling broke the world two centuries ago" which matches the codex, creating an internal contradiction with the "thousand years before" statement. However, checking against codex: the codex only specifies The Felling was "Two centuries ago" — the "thousand years before" is not directly contradicted by codex data about The Felling's timing, but the text's own internal consistency is not the issue. Re-checking: the codex does not specify when the Riven War occurred, so this is not a codex violation.</violation> <violation entry="109" detail="timePeriod" paragraph="6" substring="The Felling broke the world two centuries ago">This matches the codex (Two centuries ago), so this is NOT a violation. Removing.</violation> <violation entry="101" detail="hairColor" paragraph="8" substring="Sable drew Kindling">This is a correct reference to Sable, no violation here.</violation> <violation entry="107" detail="material" paragraph="8" substring="The dark iron blade caught the Nightbell's resonance">The text says "dark iron blade" for Kindling, which matches the codex (material: Dark iron). No violation.</violation> <violation entry="100" detail="eyeColor" paragraph="5" substring="His green eyes met Osrik's red ones">The text says Torben has "green eyes," which matches the codex (eyeColor: Green). No violation.</violation> <violation entry="101" detail="hairColor" paragraph="8" substring="Sable drew Kindling. The dark iron blade caught the Nightbell's resonance and the fire along its edge flared">No hair color mentioned here. No violation.</violation> <violation entry="101" detail="eyeColor" paragraph="2" substring="Sable stood to his left, arms crossed, her jaw set">The text uses "his" then "her" for Sable. The codex states Sable is Female. The "his" is incorrect, but this is a pronoun error, not an eyeColor error. This is a gender contradiction.</violation> <violation entry="101" detail="gender" paragraph="2" substring="Sable stood to his left">The text uses the pronoun "his" for Sable, but the codex states Sable Dunmore is Female (gender: Female).</violation> <violation entry="107" detail="power" paragraph="8" substring="the fire along its edge flared">The text describes fire along Kindling's edge, which matches the codex (power: Fire). No violation.</violation> <violation entry="110" detail="category" paragraph="6" substring="a tradition meant to keep the wards from failing">The text describes the Tithe of Echoes as "a tradition," which matches the codex for The Kindling Rite (category: Tradition). However, the text is describing the Tithe of Echoes, not The Kindling Rite. The codex entry 110 is "The Kindling Rite" with category "Tradition." The text mentions "The Kindling Rite" nowhere — it mentions "the Tithe of Echoes" and "the Tithe was a ritual older than the Spire itself, a tradition meant to keep the wards from failing." This is not a direct contradiction of codex entry 110, as the text doesn't mention The Kindling Rite at all. No violation.</violation> <violation entry="109" detail="timePeriod" paragraph="4" substring="A thousand years before the Felling">Re-checking: The codex states The Felling was "Two centuries ago." The text says the Riven War was "A thousand years before the Felling." This is not a direct contradiction of the codex — the codex doesn't specify when the Riven War occurred. The text's internal math (1000 years before 200 years ago = 1200 years ago) is not contradicted by the codex. No violation.</violation> <violation entry="106" detail="terrain" paragraph="8" substring="You were there when The Felling reached the coast">The text mentions "the coast" in relation to The Felling reaching it. The codex states Dunmore (location 106) has terrain "Coastal." However, the text does not explicitly state that The Felling reached Dunmore, nor does it name Dunmore. It just says "the coast." This is not a direct contradiction — "the coast" is a general term, not the specific location name "Dunmore." No violation.</violation> <violation entry="103" detail="gender" paragraph="8" substring="Petal. My sister">The text refers to Petal as Sable's "sister," implying Petal is female. The codex states Petal Dunmore (id 103) is Female. This matches. No violation.</violation> <violation entry="104" detail="gender" paragraph="8" substring="Petal. My sister">No reference to Jurren Dunmore in the text. No violation possible.</violation> <violation entry="102" detail="gender" paragraph="2" substring="the dwarf Grunn — Old Tetch">The text refers to "the dwarf Grunn — Old Tetch." The codex has "Old Rivka" (id 102) as Female, but no entry for "Grunn" or "Old Tetch." This is not a contradiction of codex entry 102, as Grunn/Old Tetch is not Old Rivka. No violation.</violation> <violation entry="108" detail="material" paragraph="5" substring="In his right hand he carried a blade: Harrowglass">No mention of Petal's Locket in the text. No violation.</violation> <violation entry="105" detail="name" paragraph="1" substring="The Spire of Echoes">The codex has location 105 named "The Rusty Lantern." The text mentions "The Spire of Echoes" and "the Spire" throughout. These are different names. However, the codex does not state that "The Spire of Echoes" is wrong — it just lists "The Rusty Lantern" as a location. The text never mentions "The Rusty Lantern." This is not a direct contradiction; it's an omission or different location. No violation.</violation> <violation entry="100" detail="hairColor" paragraph="1" substring="Torben — Stray, as some still called him — stood at the base">No hair color mentioned for Torben in this paragraph. No violation.</violation> <violation entry="100" detail="aliases" paragraph="1" substring="Torben — Stray, as some still called him">The text uses "Stray" as an alias for Torben, which matches the codex (aliases: Stray). No violation.</violation> <violation entry="101" detail="age" paragraph="2" substring="Sable stood to his left, arms crossed, her jaw set">No age mentioned for Sable. No violation.</violation> <violation entry="101" detail="species" paragraph="2" substring="Sable stood to his left, arms crossed, her jaw set">No species mentioned for Sable in the text. The codex states Human. No contradiction. No violation.</violation> <violation entry="107" detail="objectType" paragraph="8" substring="Sable drew Kindling. The dark iron blade">The text calls Kindling a "blade," which is consistent with Weapon. No violation.</violation> <violation entry="107" detail="name" paragraph="8" substring="Sable drew Kindling">The text uses the name "Kindling," which matches the codex (name: Kindling). No violation.</violation> <violation entry="109" detail="category" paragraph="4" substring="The Riven War">The text calls the Riven War a war. The codex entry 109 is "The Felling" with category "War." The text does not call The Felling a war — it calls the Riven War a war. These are different events. No direct contradiction. No violation.</violation> <violation entry="110" detail="name" paragraph="6" substring="the Tithe of Echoes">The codex has "The Kindling Rite" (id 110). The text mentions "the Tithe of Echoes" and "the Tithe." These are different names. The text does not mention "The Kindling Rite." This is not a direct contradiction — it's a different ritual/tradition. No violation.</violation> <violations-none/>
created_at
"2026-10-06T15:04:22.973Z"
10/6/2026, 3:04:22 PM
model
"mistralai/mistral-large-4-0-20261006"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
771
moderation_latency
(null)
generation_time
42368
tokens_prompt
2977
tokens_completion
2017
native_tokens_prompt
2788
native_tokens_completion
2037
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
2560
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
service_tier
"default"
usage
0.00459157
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1791299062-EuHRBCe5t5hdSGTc5HXW"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1791299062-lL9LP7hslAji4HIFFoSF"
upstream_id
"470df6e911bb4a0f90774520ee25fe0e"
provider_responses
0
endpoint_id
"540e63db-cc7c-4556-bb67-d449579bcf1a"
id
"470df6e911bb4a0f90774520ee25fe0e"
is_byok
false
latency
771
model_permaslug
"mistralai/mistral-large-4-0-20261006"
provider_name
"Mistral"
status
200
total_cost
0.00459157
cache_discount
0.0031232
upstream_inference_cost
0
provider_name
"Mistral"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
50.00%
Correct "no violations" response
Response should contain <violations-none/> or equivalent phrasing
hasViolationTags
true
hasViolationsNoneTag
true
3.70%
No hallucinated violations
Response must not contain any <violation> tags
hasViolationTags
true
responseLength
7977
violationCount
26
26.8519%