GPT-4o, Aug. 6th (temp=0)

openai/gpt-4o-2024-08-06

GPT-4o, Aug. 6th (temp=0)

via OpenRouter

Release Date

Aug 6th, 2024

Context Size

128k

Reasoning

Benchmark Cost

$9.89

Speed

633.6 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	78	75	73	73	67	73%
Horror: alone in an eerie place at night Creative Writing Hallucination	78	74	74	68	63	71%
Literary fiction: old friends reunite Creative Writing Hallucination	80	77	73	72	71	75%
Mystery: examining a crime scene Creative Writing Hallucination	80	79	78	76	75	78%
Romance: separated couple reunites Creative Writing Hallucination	78	76	75	74	74	75%
Thriller: chase through city streets Creative Writing Hallucination	77	77	76	73	72	75%
Detailed Writing Rules						74.54%
genre
Fantasy: entering an ancient ruin Creative Writing Hallucination	77	71	64	63	63	68%
Horror: alone in an eerie place at night Creative Writing Hallucination	72	72	72	67	66	70%
Literary fiction: old friends reunite Creative Writing Hallucination	77	75	75	73	72	74%
Mystery: examining a crime scene Creative Writing Hallucination	75	74	74	74	73	74%
Romance: separated couple reunites Creative Writing Hallucination	78	76	74	70	68	73%
Thriller: chase through city streets Creative Writing Hallucination	81	76	73	71	71	74%
genre						72.20%
Novelcrafter Default Prompt
Fantasy: entering an ancient ruin Creative Writing Hallucination	74	73	73	72	68	72%
Horror: alone in an eerie place at night Creative Writing Hallucination	78	72	65	63	60	68%
Literary fiction: old friends reunite Creative Writing Hallucination	77	74	74	74	68	73%
Mystery: examining a crime scene Creative Writing Hallucination	81	81	79	76	74	78%
Romance: separated couple reunites Creative Writing Hallucination	74	72	71	69	60	69%
Thriller: chase through city streets Creative Writing Hallucination	85	78	77	74	72	77%
Novelcrafter Default Prompt						72.94%
73.22%

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	94	93	93	93	93	93%
Medium: The Hollow (Inferred) Tooling Reasoning	94	94	94	93	92	93%
Medium: Through the Thornveil (Scattered) Tooling Reasoning	94	93	93	93	93	93%
Short: The Rusty Lantern (Explicit) Tooling Reasoning	94	94	94	94	93	93%
93.29%

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	7	7	6	6	6	6	5	4	4	4	5%
Long text (~1594 words), small codex (11 entries) Hallucination	10	10	8	8	8	8	7	7	6	6	8%
Short text (~524 words), big codex (51 entries) Hallucination	33	25	25	17	17	17	17	17	13	13	19%
Short text (~524 words), small codex (11 entries) Hallucination	25	25	25	25	25	25	25	17	17	13	22%
basic entries											13.67%
detailed entries
Long text (~1594 words), big codex (51 detailed entries) Hallucination	42	42	42	35	31	7	6	5	3	2	21%
Long text (~1594 words), small codex (11 detailed entries) Hallucination	10	10	10	10	8	7	7	6	5	5	8%
Short text (~524 words), big codex (51 detailed entries) Hallucination	25	25	25	25	25	25	25	17	17	17	23%
Short text (~524 words), small codex (11 detailed entries) Hallucination	100	100	100	100	25	25	25	25	25	17	54%
detailed entries											26.45%
20.06%

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	76	76	69	69	69	69	67	66	34	34	63%
Large codex (40 entries), short passage (165 words) Tooling Reasoning	91	84	84	82	82	82	81	81	81	79	83%
Small codex (7 entries), long passage (734 words) Tooling Reasoning	87	87	84	84	84	84	84	84	84	80	84%
Small codex (7 entries), short passage (165 words) Tooling Reasoning	100	100	100	100	100	100	100	100	97	97	99%
matrix											82.36%
tiers
5 codex entries Tooling Reasoning	91	91	91	76	76	76	76	76	76	76	80%
10 codex entries Tooling Reasoning	94	94	94	94	94	94	94	94	94	89	94%
20 codex entries Tooling Reasoning	92	92	92	92	92	92	89	89	89	89	91%
40 codex entries Tooling Reasoning	93	93	90	90	90	84	84	84	80	70	86%
tiers											87.80%
85.08%

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	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%
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%
87.50%

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	50	50	50	50	50	50	49	49	30	48%
Write 200 words with 50% dialogue Rule Following Utility	100	100	99	90	89	86	71	71	64	60	83%
Write 200 words with 90% dialogue Rule Following Utility	68	68	68	68	68	68	68	68	68	66	68%
dialogue-200											66.23%
dialogue-500
Write 500 words with 30% dialogue Rule Following Utility	50	43	43	43	43	41	38	5	0	0	31%
Write 500 words with 50% dialogue Rule Following Utility	44	38	37	30	1	0	0	0	0	0	15%
Write 500 words with 70% dialogue Rule Following Utility	99	97	83	65	42	42	42	42	31	1	54%
dialogue-500											33.24%
Ungrouped
Write unattributed dialogue Rule Following	100	100	100	100	100	100	100	100	100	100	100%
56.92%

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	100	100	100	100%
Character dialogue (German) in a story Language	100	100	100	100	100	100%
Character dialogue (Hindi) in a story Language	100	100	100	100	100	100%
Character dialogue (Italian) in a story Language	100	100	100	100	100	100%
Character dialogue (Spanish) in a story Language	100	100	100	100	100	100%
100.00%

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	98	96	96	94	93	93	93	93	93	92	94%
Write sentences with 10 words each Utility	100	95	95	95	92	92	92	92	90	90	93%
Write sentences with 20 words each Utility	25	19	17	15	13	13	12	12	12	11	15%
67.45%

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	0	0	0	0	0	0	0	0	0	0	0%
outline-count											66.67%
pov-count
Count point of views for Jack and Olivia Utility	100	100	100	100	100	50	50	50	50	50	75%
Count point of views for Jack Harper Utility	100	100	0	0	0	0	0	0	0	0	20%
Count point of views for Olivia Utility	0	0	0	0	0	0	0	0	0	0	0%
pov-count											31.67%
49.17%

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	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	93	93	92	92	91	87	20	81%
POV shift: 3rd person to 1st person (Elena's perspective) Text Editing	100	96	96	96	96	96	96	97%
Tense rewriting: past to present Text Editing	97	97	97	97	97	97	97	97%
Generic Prompt								97.01%
Specific 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	100	100%
Combined: 3rd person past → 1st person present Text Editing	100	100	100	100	100	100	100	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	95	92	92	92	95%
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	100	100%
Specific Prompt								99.50%
98.26%

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	100	100	100	100	100	100	0	0	0	0	60%
Simple Rule Following	100	100	100	100	100	100	100	100	100	100	100%
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	100	100	100	100	100	100	100	100	100	100	100%
92.00%

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	100	100	100	100	100	100	100	100	100	100%
20 sentence summary Utility	100	98	98	98	92	77	54	27	27	27	70%
50 sentence summary Utility	0	0	0	0	0	0	0	0	0	0	0%
sentences											74.00%
words
10 word summary Utility	100	100	100	100	100	100	100	100	100	100	100%
20 word summary Utility	98	98	98	98	98	98	98	98	98	98	98%
50 word summary Utility	100	100	100	100	100	100	100	100	100	98	100%
100 word summary Utility	100	100	100	100	100	98	98	92	92	92	97%
200 word summary Utility	100	98	98	98	98	98	98	92	0	0	78%
words											94.76%
87.98%