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Gemini 4 Carbon (high) vs GPT-5.5 (medium)

Gemini 4 Carbon (high) leads on average score with 9.3 vs 9.2. GPT-5.5 (medium) has the lower benchmark cost at $4.809 vs $6.107. GPT-5.5 (medium) is faster at 39.86s vs 120.04s, with pass rates of 97.1% vs 88.4%.

Last updated at: 2026-11-13

Compared models

Rank
#36
Total Output Tokens
513,770
Response Time (avg)
120.04s
Total Cost
$6.107
Rank
#44
Total Output Tokens
130,107
Response Time (avg)
39.86s
Total Cost
$4.809
Recommended model GPT-5.5 (medium)

Its score stays close to the best score here (9.2 vs 9.3), while responding about 3.0x faster than Gemini 4 Carbon (high).

Detailed comparison

Metric Gemini 4 Carbon Gemini 4 Carbon high Release: 2026-11-12 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 9.3 9.2
Rank #36 #44
Reliability 9.0 10.0
Consistency 9.3 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 97.1% 88.4%
Flaky tests 2 3
Total Runs 69 69
Cost per result 29.080 25.306
Total Cost $6.107 $4.809
Input Price $2.000 / 1M $5.000 / 1M
Output Price $10.000 / 1M $30.000 / 1M
Cache Read Price $0.100 / 1M $0.500 / 1M
Cache Write Price $0.188 / 1M N/A
Total Input Tokens 484,505 180,959
Output Tokens 6,098 6,472
Reasoning Tokens 507,672 123,635
Response Time (avg) 120.04s 39.86s
Response Time (max) 443.11s 332.10s
Response Time (total) 2760.87s 916.82s
Parameters ~1.2T total (~20B active) ~1.5T total (~100B 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.

#36 Gemini 4 Carbon

high
Reached the allocated time limit (600 seconds) without receiving showcase output.
Cost
$0.000
Time
600.0s
Tokens
0 tok

#44 GPT-5.5

medium
Cost
$0.112
Time
71.9s
Tokens
3,807 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
Gemini 4 Carbon 10.0 10.0 100.0% 0 119.00s 8,448 495 79,534
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

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