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Claude Opus 5.5 (low) vs Gemini 3 Flash Preview (medium)

Gemini 3 Flash Preview (medium) leads on average score with 9.6 vs 9.4. Gemini 3 Flash Preview (medium) has the lower benchmark cost at $0.876 vs $1.733. Gemini 3 Flash Preview (medium) is faster at 21.57s vs 25.68s, with pass rates of 88.4% vs 94.2%.

Last updated at: 2026-10-26

Compared models

Rank
#26
Total Output Tokens
25,006
Response Time (avg)
25.68s
Total Cost
$1.733
Rank
#15
Total Output Tokens
252,536
Response Time (avg)
21.57s
Total Cost
$0.876
Recommended model Gemini 3 Flash Preview (medium)

It has the best score here (9.6), while costing about 2.0x less than Claude Opus 5.5 (low).

Detailed comparison

Metric Claude Opus 5.5 Claude Opus 5.5 low Release: 2026-09-23 Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17
Score 9.4 9.6
Rank #26 #15
Reliability 10.0 10.0
Consistency 9.3 9.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 88.4% 94.2%
Flaky tests 2 1
Total Runs 69 69
Cost per result 9.118 4.169
Total Cost $1.733 $0.876
Input Price $4.000 / 1M $0.500 / 1M
Output Price $20.000 / 1M $3.000 / 1M
Cache Read Price $0.200 / 1M $0.050 / 1M
Cache Write Price $5.000 / 1M $0.084 / 1M
Total Input Tokens 308,056 235,726
Output Tokens 9,434 6,669
Reasoning Tokens 15,572 245,867
Response Time (avg) 25.68s 21.57s
Response Time (max) 89.16s 117.26s
Response Time (total) 590.71s 496.12s
Parameters ~5T total (~500B active) ~500B total (~20B active)
Availability Closed Closed

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

Model generation showcase

Hamster playing table tennis

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

#26 Claude Opus 5.5

low
Invalid SVG
Cost
$0.038
Time
19.1s
Tokens
2,010 tok

#15 Gemini 3 Flash Preview

medium
Cost
$0.010
Time
18.4s
Tokens
3,351 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 Opus 5.5 10.0 10.0 100.0% 0 12.23s 10,608 575 2,777
Gemini 3 Flash Preview 8.6 7.6 88.9% 1 84.40s 8,122 462 161,084

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