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Anthropic: Claude Opus 4.8 vs Google: Gemini 3 Flash Preview

Last updated at: 2026-05-28

Metric Claude Opus 4.8 Claude Opus 4.8 medium Release: 2026-05-28 Gemini 3 Flash Preview Gemini 3 Flash Preview none Release: 2025-12-17
Score 8.7 7.7
Rank #12 #42
Reliability 10.0 10.0
Consistency 9.6 9.2
Tests Correct
Attempt pass rate 83.3% 70.0%
Flaky tests 1 2
Total Runs 60 60
Cost per result 6.285 0.175
Total Cost $1.006 $0.023
Input Price $5.000 / 1M $0.500 / 1M
Output Price $25.000 / 1M $3.000 / 1M
Output Tokens 23,201 1,879
Reasoning Tokens 5,901 0
Response Time (avg) 9.34s 1.70s
Response Time (max) 38.03s 3.56s
Response Time (total) 186.84s 22.05s

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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 3.95s 1,179 478
Gemini 3 Flash Preview 8.3 10.0 75.0% 0 1.25s 214 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 14.97s 6,651 1,381
Gemini 3 Flash Preview 6.8 10.0 50.0% 0 2.19s 447 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 9.8 10.0 100.0% 0 38.03s 5,260 1,588
Gemini 3 Flash Preview 4.7 1.6 66.7% 1 3.56s 350 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 7.1 5.6 83.3% 1 12.29s 481 312
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 1.41s 279 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 5.3 10.0 33.3% 0 14.15s 7,477 900
Gemini 3 Flash Preview 7.7 10.0 66.7% 0 963ms 18 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 2.46s 237 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 1.13s 104 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 3.32s 373 320
Gemini 3 Flash Preview 6.4 5.8 66.7% 1 1.58s 74 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 3.95s 791 483
Gemini 3 Flash Preview 7.7 10.0 66.7% 0 1.05s 144 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 10.0 10.0 100.0% 0 8.96s 301 225
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.35s 234 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 3.0 10.0 0.0% 0 6.14s 451 214
Gemini 3 Flash Preview 3.0 10.0 0.0% 0 1.07s 15 0

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