Gemini 2.5 Flash - NC Bench

google/gemini-2.5-flash

Gemini 2.5 Flash

via OpenRouter

Release Date

Jun 17th, 2025

Parameters

–

Context Size

Creative writing

28.34%

Rule following

49.25%

Utility

70.50%

Mathematics

100.00%

Tooling

51.92%

Language

83.58%

Logic

87.50%

Data extraction

Extract key details from a given block of text.

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Who's the tallest? 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
What's the color of the car? 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
What instrument does Lucy play? 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Guess the pet 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
What's the correct time? 0-shot UtilityLogic	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Who's the sister? 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Contextual pronoun 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Indirect birth year 0-shot UtilityMathematicsLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Fruits excluding citrus 0-shot Utility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Future event time 0-shot UtilityLogic	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Highest-rated movie 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
All valid emails 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
83.33%

Dialogue tags

Various tasks related to dialogue tags in text.

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Write unattributed dialogue 0-shot Creative writingRule following	100%	100%	100%	100%	100%	100%	61%	61%	61%	1%	78%
Write 200 words with 10% dialogue 0-shot Creative writingRule following	50%	50%	49%	45%	34%	30%	30%	26%	0%	0%	32%
Write 200 words with 50% dialogue 0-shot Creative writingRule following	50%	50%	22%	18%	1%	1%	0%	0%	0%	0%	14%
Write 200 words with 90% dialogue 0-shot Creative writingRule following	68%	68%	66%	56%	50%	50%	49%	44%	29%	18%	50%
Write 500 words with 30% dialogue 0-shot Creative writingRule following	50%	1%	0%	0%	0%	0%	0%	0%	0%	0%	5%
Write 500 words with 50% dialogue 0-shot Creative writingRule following	49%	45%	43%	14%	0%	0%	0%	0%	0%	0%	15%
Write 500 words with 70% dialogue 0-shot Creative writingRule following	30%	13%	0%	0%	0%	0%	0%	0%	0%	0%	4%
28.34%

Language Comprehension

Does the model understand more than just English?

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Total
Friend got new kittens (Tagalog) 0-shot Language	100%	100%	100%	100%	100%	100%
Friend got new kittens (German) 0-shot Language	100%	100%	0%	0%	0%	40%
Asking for directions (German) 0-shot Language	100%	100%	100%	100%	0%	80%
Asking for directions (Dutch) 0-shot Language	100%	100%	100%	100%	0%	80%
75.00%

Language Writing

Can the model generate text in different languages?

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Total
Character dialogue (Spanish) in a story 0-shot Language	100%	100%	92%	91%	64%	90%
Character dialogue (French) in a story 0-shot Language	100%	92%	90%	88%	80%	90%
Character dialogue (German) in a story 0-shot Language	100%	100%	92%	89%	88%	94%
Character dialogue (Italian) in a story 0-shot Language	100%	100%	92%	82%	81%	91%
Character dialogue (Hindi) in a story 0-shot Language	100%	100%	100%	92%	50%	88%
90.45%

Novel outline

Handle questions about the outline of a novel in various formats

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Count chapters 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Count chapters (indented) 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Count acts 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Count acts (indented) 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Count scenes 0-shot ToolingUtility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Count scenes (indented) 0-shot ToolingUtility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Count point of views for Jack Harper 0-shot ToolingUtility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Count point of views for Jack Harper (indented) 0-shot ToolingUtility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Count point of views for Olivia 0-shot ToolingUtility	100%	100%	100%	100%	0%	0%	0%	0%	0%	0%	40%
Count point of views for Olivia (indented) 0-shot ToolingUtility	100%	100%	100%	0%	0%	0%	0%	0%	0%	0%	30%
Count point of views for Jack and Olivia 0-shot ToolingUtility	100%	100%	100%	50%	50%	50%	50%	0%	0%	0%	50%
Count point of views for Jack and Olivia (indented) 0-shot ToolingUtility	100%	100%	100%	100%	50%	50%	50%	0%	0%	0%	55%
47.92%

Tool usage within Novelcrafter

Output messages that are related to tool usage within Novelcrafter

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Create alternate prose sections 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
100.00%

N-Length Sentences

Write sentences with exactly N words

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Write sentences with 5 words each 0-shot Rule following	98%	98%	95%	93%	93%	92%	88%	84%	64%	40%	84%
Write sentences with 10 words each 0-shot Rule following	69%	62%	62%	54%	52%	50%	45%	41%	27%	14%	48%
Write sentences with 20 words each 0-shot Rule following	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
43.98%

Voice/dialogue sheets

Extract dialogue from given text as voice sheets.

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
Simple 0-shot Utility	100%	100%	100%	100%	100%	100%	0%	0%	0%	0%	60%
Simple (1-shot) 1-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Simple (5-shot) Few-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	0%	90%
Multiple speakers 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Unattributed dialogue 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	0%	90%
88.00%

Write N of X

Write exactly N words/sentences/paragraphs...

Scenario	Run 1	Run 2	Run 3	Run 4	Run 5	Run 6	Run 7	Run 8	Run 9	Run 10	Total
10 word summary 0-shot Rule following	100%	100%	100%	100%	98%	98%	92%	92%	92%	77%	95%
20 word summary 0-shot Rule following	98%	92%	92%	54%	54%	54%	54%	9%	9%	2%	52%
50 word summary 0-shot Rule following	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
100 word summary 0-shot Rule following	100%	100%	77%	27%	0%	0%	0%	0%	0%	0%	30%
200 word summary 0-shot Rule following	9%	2%	2%	0%	0%	0%	0%	0%	0%	0%	1%
1 sentence summary 0-shot Rule following	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
3 sentence summary 0-shot Rule following	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
10 sentence summary 0-shot Rule following	98%	92%	77%	54%	27%	27%	9%	2%	2%	0%	39%
20 sentence summary 0-shot Rule following	92%	92%	54%	54%	54%	27%	27%	9%	9%	0%	42%
50 sentence summary 0-shot Rule following	100%	100%	98%	98%	27%	9%	0%	0%	0%	0%	43%
1 paragraph summary 0-shot Rule following	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
3 paragraph summary 0-shot Rule following	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
5 paragraph summary 0-shot Rule following	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
61.72%