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#77

Gemini 3.5 Flash

Google Release: 2026-05-19 Tested on: 2026-10-01 09:22 google/gemini-3.5-flash::high
~500B total (~20B active)MoEClosedEstimated
(high) (medium) (low) (minimal) (none)

Summary

Gemini 3.5 Flash scores 8.3 on AI BENCHY and ranks #77. It has 10.0 reliability, a 85.5% pass rate, $2.737 total cost, and 18.59s average response time.

What makes Gemini 3.5 Flash unique: It stands out most in Trivia, where it ranks #1, while Agentic is its weakest area at #17.

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

8.3

Consistency

9.3

Reliability

10.0

Total Cost (Current Price)

$2.737

Total Output Tokens

246,012

Total Input Tokens

348,103

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)

18.59s

Response Time (max): 145.92s

Response Time (total): 427.52s

Invalid tool call: 2 Wrong answer: 2

Hamster playing table tennis

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

#77 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 09:22 Re-test 8.3 10.0 $2.737 Current run
2026-07-16 23:05 New test added 9.5 10.0 $1.976 Compare
2026-06-04 14:03 New test added 9.6 10.0 $1.115 Compare
2026-05-22 00:30 Re-test 9.6 10.0 $0.994 Compare
2026-05-19 23:35 Initial run 9.6 10.0 $0.773 Compare

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

Run comparison

RunBenchmark coverageScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-10-01 09:22 · Current run69/69 attempts8.39.310.019/232246,012348,103$2.73718.59s
2026-05-19 23:35 · Initial run57/57 attempts9.69.610.018/19180,8220$0.7736.90s
Difference—-1.3-0.30.0+1+1+165190+348103+$1.964+11688ms

Benchmark coverage differs: 69/69 attempts (Target: 3 repeats per test) versus 57/57 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

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 3.4 9.6
Anti-AI Tricks 10.0 10.0
Coding 10.0 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 10.0 10.0
Puzzle Solving 10.0 10.0
Tool Calling 9.8 10.0
Trivia 10.0 10.0

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