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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 low Release: 2025-12-17
Score 8.7 8.6
Rank #12 #13
Reliability 10.0 10.0
Consistency 9.6 9.6
Tests Correct
Attempt pass rate 83.3% 81.7%
Flaky tests 1 1
Total Runs 60 60
Cost per result 6.285 0.658
Total Cost $1.006 $0.106
Input Price $5.000 / 1M $0.500 / 1M
Output Price $25.000 / 1M $3.000 / 1M
Output Tokens 23,201 2,070
Reasoning Tokens 5,901 27,348
Response Time (avg) 9.34s 5.81s
Response Time (max) 38.03s 14.72s
Response Time (total) 186.84s 116.25s

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 10.0 10.0 100.0% 0 3.48s 281 3,082
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 7.3 10.0 50.0% 0 6.66s 450 6,251
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 3.0 10.0 0.0% 0 3.27s 326 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 9.40s 279 3,656
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 5.3 7.2 44.4% 1 8.05s 12 6,410
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 3.68s 120 981
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 9.9 10.0 100.0% 0 7.02s 71 2,752
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 10.0 10.0 100.0% 0 5.77s 288 3,168
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 4.99s 234 415
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 10.0 10.0 100.0% 0 2.75s 9 633

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