Current benchmark matchup
Claude Opus 5 vs Gemini 3.5 Flash
Compare current scores, source confidence, price, context, capabilities, and focused Design Arena results for both models.
Claude Opus 5
Anthropic
Vibe Coding Index
66.6
High confidence
Gemini 3.5 Flash
Google
Vibe Coding Index
54.7
High confidence
Current VCI result
Claude Opus 5 leads by 11.9 VCI points.
This result follows the current published source evidence and can change when a scheduled refresh finds newer measurements.
Exact score differences
Side-by-side benchmark data
Measure
Claude Opus 5
Gemini 3.5 Flash
Vibe Coding Index
66.6
54.7
Intelligence
61.0
50.2
Coding
78.0
70.2
Agentic
55.0
37.4
Blended price
$10
$3.38
Context window
1,000,000
1,048,576
Claude Opus 5 evidence
100% core coverageComplete core scores supported by at least two current verified sources.
Capability metadata is waiting for the next catalog refresh.
Gemini 3.5 Flash evidence
100% core coverageComplete core scores supported by at least two current verified sources.
Include reasoningMax tokensReasoningReasoning effortResponse formatSeedStopStructured outputs
