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Gemini 3.5 Flash (high) vs GPT-5.6 Terra (high)

The average score is effectively tied at 8.3 vs 8.3. GPT-5.6 Terra (high) has the lower benchmark cost at $0.698 vs $2.737. GPT-5.6 Terra (high) is faster at 13.62s vs 18.59s, with pass rates of 85.5% vs 69.6%.

Last updated at: 2026-10-02

Compared models

Rank
#77
Total Output Tokens
246,012
Response Time (avg)
18.59s
Total Cost
$2.737
Rank
#76
Total Output Tokens
60,065
Response Time (avg)
13.62s
Total Cost
$0.698
Recommended model GPT-5.6 Terra (high)

It has the best score here (8.3), while costing about 3.9x less than Gemini 3.5 Flash (high).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-5.6 Terra GPT-5.6 Terra high Release: 2026-07-09
Score 8.3 8.3
Rank #77 #76
Reliability 10.0 10.0
Consistency 9.3 9.4
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 85.5% 69.6%
Flaky tests 2 2
Total Runs 69 69
Cost per result 14.402 8.674
Total Cost $2.737 $0.698
Input Price $1.500 / 1M $2.000 / 1M
Output Price $9.000 / 1M $12.000 / 1M
Cache Read Price $0.150 / 1M $0.200 / 1M
Cache Write Price $0.084 / 1M $2.500 / 1M
Total Input Tokens 348,103 197,239
Output Tokens 11,045 6,083
Reasoning Tokens 234,967 53,982
Response Time (avg) 18.59s 13.62s
Response Time (max) 145.92s 91.49s
Response Time (total) 427.52s 313.21s
Parameters ~500B total (~20B active) ~1T total (~60B 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.

#77 Gemini 3.5 Flash

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

#76 GPT-5.6 Terra

high
Cost
$0.055
Time
30.2s
Tokens
3,748 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 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-5.6 Terra 7.6 7.2 77.8% 1 9.14s 7,302 370 6,087

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