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Claude Sonnet 5.5 (max) vs Gemini 3.5 Flash (medium)

The average score is effectively tied at 9.0 vs 9.0. Gemini 3.5 Flash (medium) has the lower benchmark cost at $0.665 vs $7.545. Gemini 3.5 Flash (medium) is faster at 8.48s vs 83.04s, with pass rates of 81.8% vs 83.3%.

Last updated at: 2026-09-29

Compared models

Rank
#39
Total Output Tokens
727,349
Response Time (avg)
83.04s
Total Cost
$7.545
Rank
#37
Total Output Tokens
62,173
Response Time (avg)
8.48s
Total Cost
$0.665
Recommended model Gemini 3.5 Flash (medium)

It has the best score here (9.0), while costing about 11.4x less than Claude Sonnet 5.5 (max).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 max Release: 2026-09-29 Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19
Score 9.0 9.0
Rank #39 #37
Reliability 10.0 10.0
Consistency 9.4 9.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 83.3%
Flaky tests 2 1
Total Runs 66 66
Cost per result 44.380 3.690
Total Cost $7.545 $0.665
Input Price $2.000 / 1M $1.500 / 1M
Output Price $10.000 / 1M $9.000 / 1M
Total Input Tokens 135,496 69,756
Output Tokens 8,153 2,166
Reasoning Tokens 719,196 60,007
Response Time (avg) 83.04s 8.48s
Response Time (max) 488.39s 76.68s
Response Time (total) 1826.84s 186.57s
Parameters ~1T total (~100B active) ~500B total (~20B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#39 Claude Sonnet 5.5

max
OpenRouter returned no showcase content (finish_reason: length).
Cost
$0.000
Time
571.7s
Tokens
0 tok

#37 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 5.5 10.0 10.0 100.0% 0 55.26s 10,608 580 70,730
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939

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