GPT-4o, Aug. 6th (temp=1)

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

GPT-4o, Aug. 6th (temp=1)

via OpenRouter

Release Date

Aug 6th, 2024

Context Size

128k

Reasoning

Benchmark Cost

$8.66

Speed

115.5 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	80	78	77	72	66	75%
Horror: alone in an eerie place at night Creative Writing Hallucination	84	84	79	78	77	81%
Literary fiction: old friends reunite Creative Writing Hallucination	80	80	77	76	71	77%
Mystery: examining a crime scene Creative Writing Hallucination	80	79	78	78	73	78%
Romance: separated couple reunites Creative Writing Hallucination	83	80	78	76	73	78%
Thriller: chase through city streets Creative Writing Hallucination	82	77	76	75	74	77%
Detailed Writing Rules						77.44%
genre
Fantasy: entering an ancient ruin Creative Writing Hallucination	77	75	73	69	69	73%
Horror: alone in an eerie place at night Creative Writing Hallucination	84	82	80	78	76	80%
Literary fiction: old friends reunite Creative Writing Hallucination	80	73	72	72	71	73%
Mystery: examining a crime scene Creative Writing Hallucination	79	75	75	71	69	74%
Romance: separated couple reunites Creative Writing Hallucination	79	76	71	70	69	73%
Thriller: chase through city streets Creative Writing Hallucination	84	82	78	76	73	78%
genre						75.25%
Novelcrafter Default Prompt
Fantasy: entering an ancient ruin Creative Writing Hallucination	75	72	70	68	67	70%
Horror: alone in an eerie place at night Creative Writing Hallucination	83	80	80	76	76	79%
Literary fiction: old friends reunite Creative Writing Hallucination	77	77	76	75	73	76%
Mystery: examining a crime scene Creative Writing Hallucination	86	80	78	71	70	77%
Romance: separated couple reunites Creative Writing Hallucination	80	80	74	72	69	75%
Thriller: chase through city streets Creative Writing Hallucination	82	80	77	75	74	78%
Novelcrafter Default Prompt						75.78%
76.16%

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	91	91	91	91%
Medium: The Hollow (Inferred) Tooling Reasoning	95	95	94	93	89	93%
Medium: Through the Thornveil (Scattered) Tooling Reasoning	94	94	93	92	91	93%
Short: The Rusty Lantern (Explicit) Tooling Reasoning	93	92	91	91	88	91%
92.15%

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	35	33	30	29	25	25	8	7	7	6	21%
Long text (~1594 words), small codex (11 entries) Hallucination	100	42	42	42	17	17	13	8	7	7	29%
Short text (~524 words), big codex (51 entries) Hallucination	100	100	100	42	38	33	25	25	13	10	49%
Short text (~524 words), small codex (11 entries) Hallucination	100	38	35	35	35	17	17	13	13	10	31%
basic entries											32.36%
detailed entries
Long text (~1594 words), big codex (51 detailed entries) Hallucination	100	100	35	35	25	25	17	17	17	8	38%
Long text (~1594 words), small codex (11 detailed entries) Hallucination	100	100	100	100	100	42	38	17	10	10	62%
Short text (~524 words), big codex (51 detailed entries) Hallucination	25	25	25	25	25	25	25	25	17	13	23%
Short text (~524 words), small codex (11 detailed entries) Hallucination	100	100	100	100	42	42	25	25	25	25	58%
detailed entries											45.17%
38.76%

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	73	72	71	70	67	65	64	63	57	56	66%
Large codex (40 entries), short passage (165 words) Tooling Reasoning	89	89	88	86	84	82	82	81	78	3	76%
Small codex (7 entries), long passage (734 words) Tooling Reasoning	90	90	87	84	84	80	80	80	80	75	83%
Small codex (7 entries), short passage (165 words) Tooling Reasoning	100	100	100	100	97	97	92	92	92	92	96%
matrix											80.36%
tiers
5 codex entries Tooling Reasoning	91	91	83	76	76	76	76	76	76	76	79%
10 codex entries Tooling Reasoning	100	94	94	94	94	94	94	94	89	89	94%
20 codex entries Tooling Reasoning	97	97	97	97	92	89	86	85	82	82	90%
40 codex entries Tooling Reasoning	93	93	93	93	90	88	84	80	80	70	87%
tiers											87.60%
83.98%

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	68	54	50	50	50	50	50	49	49	47	52%
Write 200 words with 50% dialogue Rule Following Utility	100	95	82	50	50	50	50	50	50	49	63%
Write 200 words with 90% dialogue Rule Following Utility	68	68	68	68	67	65	64	62	59	59	65%
dialogue-200											59.70%
dialogue-500
Write 500 words with 30% dialogue Rule Following Utility	49	29	22	5	2	0	0	0	0	0	11%
Write 500 words with 50% dialogue Rule Following Utility	50	50	46	41	26	15	10	1	1	0	24%
Write 500 words with 70% dialogue Rule Following Utility	100	92	86	50	47	44	30	2	0	0	45%
dialogue-500											26.60%
Ungrouped
Write unattributed dialogue Rule Following	100	100	100	100	100	100	100	100	100	100	100%
51.27%

Language Comprehension

Does the model understand more than just English?

Scenario	#1	#2	#3	#4	#5	Total
Asking for directions (Dutch) Language	100	0	0	0	0	20%
Asking for directions (German) Language	100	100	0	0	0	40%
Friend got new kittens (German) Language	100	100	100	100	100	100%
Friend got new kittens (Tagalog) Language	100	100	100	100	100	100%
65.00%

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	86	97%
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%
99.43%

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	99	99	96	95	94	93	91	89	96%
Write sentences with 10 words each Utility	100	97	95	95	95	95	95	95	90	90	95%
Write sentences with 20 words each Utility	59	57	52	46	34	27	22	14	12	9	33%
74.44%

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	100	50	50	50	0	75%
Count point of views for Jack Harper Utility	100	100	100	0	0	0	0	0	0	0	30%
Count point of views for Olivia Utility	0	0	0	0	0	0	0	0	0	0	0%
pov-count											35.00%
50.83%

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	98	98	98	97	97	98%
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	99	99	99	100%
Passive voice → active voice Text Editing Hallucination	91	89	89	86	81	78	20	76%
POV shift: 3rd person to 1st person (Elena's perspective) Text Editing	100	100	100	97	96	90	89	96%
Tense rewriting: past to present Text Editing	99	97	97	97	97	96	93	96%
Generic Prompt								96.28%
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	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	98	93	92	88	75	74	20	77%
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								97.42%
96.85%

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	0	0	0	0	0	0	0	30%
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	0	0	80%
82.00%

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	100	98	92	77	77	77	54	27	9	71%
50 sentence summary Utility	0	0	0	0	0	0	0	0	0	0	0%
sentences											74.24%
words
10 word summary Utility	100	100	100	100	100	100	100	100	100	100	100%
20 word summary Utility	100	100	100	100	100	100	98	98	98	98	99%
50 word summary Utility	100	100	100	100	100	100	98	92	92	77	96%
100 word summary Utility	100	100	100	100	100	100	100	98	98	98	100%
200 word summary Utility	98	98	98	98	92	92	77	54	9	0	72%
words											93.32%
87.53%