Gemini 2.5 Flash Lite

google/gemini-2.5-flash-lite

Gemini 2.5 Flash Lite

via OpenRouter

Release Date

Jul 22nd, 2025

Parameters

–

Context Size

Creative writing

39.17%

Rule following

63.24%

Utility

75.00%

Mathematics

100.00%

Tooling

63.08%

Language

78.79%

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	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
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%
91.67%

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%	100%	100%	61%	61%	92%
Write 200 words with 10% dialogue 0-shot Creative writingRule following	50%	50%	50%	49%	48%	0%	0%	0%	0%	0%	25%
Write 200 words with 50% dialogue 0-shot Creative writingRule following	75%	50%	49%	47%	41%	4%	0%	0%	0%	0%	27%
Write 200 words with 90% dialogue 0-shot Creative writingRule following	95%	88%	88%	88%	84%	76%	67%	67%	50%	49%	75%
Write 500 words with 30% dialogue 0-shot Creative writingRule following	50%	47%	45%	30%	0%	0%	0%	0%	0%	0%	17%
Write 500 words with 50% dialogue 0-shot Creative writingRule following	50%	49%	43%	41%	10%	7%	0%	0%	0%	0%	20%
Write 500 words with 70% dialogue 0-shot Creative writingRule following	47%	45%	43%	22%	18%	10%	0%	0%	0%	0%	19%
39.17%

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%	100%	100%
Asking for directions (Dutch) 0-shot Language	100%	100%	100%	100%	0%	80%
80.00%

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	91%	89%	73%	50%	0%	61%
Character dialogue (French) in a story 0-shot Language	100%	93%	77%	75%	67%	82%
Character dialogue (German) in a story 0-shot Language	100%	100%	100%	78%	75%	91%
Character dialogue (Italian) in a story 0-shot Language	100%	93%	90%	83%	79%	89%
Character dialogue (Hindi) in a story 0-shot Language	93%	64%	60%	60%	56%	67%
77.82%

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	100%	0%	0%	0%	0%	0%	0%	0%	0%	0%	10%
Count point of views for Jack Harper 0-shot ToolingUtility	100%	100%	100%	100%	0%	0%	0%	0%	0%	0%	40%
Count point of views for Jack Harper (indented) 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	0%	0%	0%	0%	60%
Count point of views for Olivia 0-shot ToolingUtility	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Count point of views for Olivia (indented) 0-shot ToolingUtility	100%	100%	0%	0%	0%	0%	0%	0%	0%	0%	20%
Count point of views for Jack and Olivia 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
Count point of views for Jack and Olivia (indented) 0-shot ToolingUtility	100%	100%	100%	100%	100%	100%	100%	100%	100%	0%	90%
60.00%

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	100%	98%	96%	95%	93%	91%	89%	86%	86%	72%	91%
Write sentences with 10 words each 0-shot Rule following	88%	78%	76%	61%	61%	60%	50%	39%	37%	22%	57%
Write sentences with 20 words each 0-shot Rule following	57%	34%	4%	4%	2%	0%	0%	0%	0%	0%	10%
52.64%

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%	100%	100%	100%	0%	90%
Simple (1-shot) 1-shot Utility	100%	100%	100%	100%	100%	100%	100%	100%	100%	0%	90%
Simple (5-shot) Few-shot Utility	100%	100%	100%	100%	100%	100%	100%	0%	0%	0%	70%
Multiple speakers 0-shot Utility	100%	0%	0%	0%	0%	0%	0%	0%	0%	0%	10%
Unattributed dialogue 0-shot Utility	100%	100%	100%	100%	100%	100%	100%	0%	0%	0%	70%
66.00%

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%	100%	100%	100%	100%	100%	100%	100%
20 word summary 0-shot Rule following	100%	100%	100%	100%	98%	98%	98%	98%	92%	92%	98%
50 word summary 0-shot Rule following	100%	100%	100%	98%	98%	92%	92%	92%	77%	2%	85%
100 word summary 0-shot Rule following	100%	100%	98%	92%	92%	92%	54%	54%	9%	0%	69%
200 word summary 0-shot Rule following	27%	9%	0%	0%	0%	0%	0%	0%	0%	0%	4%
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	100%	100%	100%	100%	100%	98%	92%	92%	54%	0%	84%
20 sentence summary 0-shot Rule following	100%	100%	54%	2%	0%	0%	0%	0%	0%	0%	26%
50 sentence summary 0-shot Rule following	100%	98%	98%	92%	77%	54%	54%	2%	0%	0%	58%
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%
78.64%