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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 none Release: 2026-05-28 Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17
Score 7.3 9.8
Rank #63 #1
Reliability 10.0 10.0
Consistency 9.2 9.6
Tests Correct
Attempt pass rate 65.0% 98.3%
Flaky tests 2 1
Total Runs 60 60
Cost per result 4.324 2.980
Total Cost $0.519 $0.567
Input Price $5.000 / 1M $0.500 / 1M
Output Price $25.000 / 1M $3.000 / 1M
Output Tokens 8,098 2,000
Reasoning Tokens 0 181,033
Response Time (avg) 3.51s 16.50s
Response Time (max) 17.73s 117.26s
Response Time (total) 70.19s 330.06s

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 6.5 10.0 50.0% 0 3.40s 1,472 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.88s 330 3,216
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 6.8 10.0 50.0% 0 3.59s 1,323 0
Gemini 3 Flash Preview 7.9 6.4 83.3% 1 95.96s 456 127,964
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 9.5 10.0 100.0% 0 17.73s 3,259 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 22.42s 351 10,485
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 7.3 5.8 83.3% 1 1.77s 308 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.43s 279 4,893
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 5.3 7.2 44.4% 1 1.66s 61 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 15.27s 12 21,684
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 3.48s 230 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.19s 72 1,905
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 9.9 10.0 100.0% 0 1.37s 95 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.04s 72 2,709
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.8 7.7 10.0 66.7% 0 2.74s 783 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.05s 183 4,365
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 5.35s 355 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 12.60s 234 1,487
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 3.41s 212 0
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.50s 11 2,325

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