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Claude Opus 4.8 (low) vs Gemini 2.5 Flash (medium)

Gemini 2.5 Flash (medium) leads on average score with 7.3 vs 7.2. Gemini 2.5 Flash (medium) has the lower benchmark cost at $0.644 vs $3.787. Claude Opus 4.8 (low) is faster at 17.13s vs 20.51s, with pass rates of 78.3% vs 68.1%.

Last updated at: 2026-10-01

Compared models

Rank
#143
Total Output Tokens
69,489
Response Time (avg)
17.13s
Total Cost
$3.787
Rank
#135
Total Output Tokens
241,365
Response Time (avg)
20.51s
Total Cost
$0.644
Recommended model Gemini 2.5 Flash (medium)

It has the best score here (7.3), while costing about 5.9x less than Claude Opus 4.8 (low).

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 low Release: 2026-05-28 Gemini 2.5 Flash Gemini 2.5 Flash medium Release: 2025-06-17
Score 7.2 7.3
Rank #143 #135
Reliability 10.0 10.0
Consistency 8.6 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 78.3% 68.1%
Flaky tests 4 1
Total Runs 69 69
Cost per result 23.669 4.288
Total Cost $3.787 $0.644
Input Price $5.000 / 1M $0.300 / 1M
Output Price $25.000 / 1M $2.500 / 1M
Total Input Tokens 409,947 132,507
Output Tokens 46,060 12,739
Reasoning Tokens 23,429 228,626
Response Time (avg) 17.13s 20.51s
Response Time (max) 127.97s 140.50s
Response Time (total) 394.01s 471.64s
Parameters ~5T total (~500B active) ~350B 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.

#143 Claude Opus 4.8

low
Cost
$0.031
Time
14.1s
Tokens
1,345 tok

#135 Gemini 2.5 Flash

medium
No output was saved. The original provider response or failure reason is unavailable.
Cost
$0.000
Time
274.0s
Tokens
0 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 4.8 6.6 4.6 77.8% 2 7.58s 10,590 3,637 809
Gemini 2.5 Flash 7.8 10.0 66.7% 0 41.01s 6,669 543 32,303

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