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#38

Gemini 3.5 Flash

Google Release: 2026-05-19 Tested on: 2026-10-01 02:20 google/gemini-3.5-flash::low
~500B total (~20B active)MoEClosedEstimated
(high) (medium) (low) (minimal) (none)

Summary

Gemini 3.5 Flash scores 9.0 on AI BENCHY and ranks #38. It has 10.0 reliability, a 85.5% pass rate, $0.752 total cost, and 7.85s average response time.

What makes Gemini 3.5 Flash unique: It stands out most in Trivia, where it ranks #1, while Coding is its weakest area at #15. It is notably fast compared with similar models.

Model facts

Researched on 2026-08-12

Estimated
Parameters
~500B total (~20B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. Google does not disclose parameter counts.

Parameter source Availability source

Score

9.0

Consistency

9.4

Reliability

10.0

Total Cost (Current Price)

$0.752

Total Output Tokens

42,730

Total Input Tokens

244,533

Input Price

$1.500 / 1M

Output Price

$9.000 / 1M

Cache Read Price

$0.150 / 1M

Cache Write Price

$0.084 / 1M

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 4

Attempt pass rate: 85.5%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

7.85s

Response Time (max): 53.74s

Response Time (total): 180.45s

Wrong answer: 3 Invalid tool call: 1

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#38 Gemini 3.5 Flash

low
Cost
$0.068
Time
39.1s
Tokens
7,588 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 02:20 Re-test 9.0 10.0 $0.752 Current run
2026-07-16 22:57 New test added 8.9 10.0 $0.433 Compare
2026-06-04 14:02 New test added 9.4 10.0 $0.349 Compare
2026-05-22 00:28 Suite changed 9.3 10.0 $0.285 Compare
2026-05-19 23:35 Initial run 9.6 10.0 $0.245 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-08-14 12:51 $1.500 / 1M $9.000 / 1M N/A N/A
2026-10-01 18:33 $1.500 / 1M $9.000 / 1M $0.150 / 1M $0.084 / 1M

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 10.0 10.0
Coding 7.8 10.0
Combined 8.2 6.9
Data parsing and extraction 10.0 10.0
Domain specific 5.3 7.2
General Intelligence 10.0 10.0
Instructions following 9.9 10.0
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 10.0 10.0

Compared models