Gemini 3 Flash vs Claude 4.5 Opus (High)

Detailed comparison of capabilities, features, and performance.

Feature
Gemini 3 Flash
Claude 4.5 Opus (High)
Model Image
Gemini 3 Flash
Claude 4.5 Opus (High)
AI Lab
Google
Anthropic
Context Size
1,048,576 tokens
200,000 tokens
Max Output Size
65,536 tokens
64,000 tokens
Frontier Model
Yes
Yes
Vision Support
Yes
Yes
Description
Gemini 3 Flash: Frontier intelligence built for speed. Pro-grade reasoning at Flash-level latency, 3x faster than 2.5 Pro, ideal for agentic workflows and interactive applications.
The latest Opus 4.5 model from Anthropic with high reasoning

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