Claude Opus 4.6 vs Gemini 3 Flash Comparison
Comparing Claude Opus 4.6 and Gemini 3 Flash across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Claude Opus 4.6 outperforms in 8 benchmarks (AIME 2025, ARC-AGI v2, GPQA, Humanity's Last Exam, MCP Atlas, MRCR v2 (8-needle), SWE-Bench Verified, Terminal-Bench 2.0), while Gemini 3 Flash is better at 3 benchmarks (CharXiv-R, MMMLU, MMMU-Pro).
Claude Opus 4.6 shows notably better performance in the majority of benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Opus 4.6 ($5.00/1M tokens) is 10.0x more expensive than Gemini 3 Flash ($0.50/1M tokens).
For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 8.3x more expensive than Gemini 3 Flash ($3.00/1M tokens).
In conclusion, Claude Opus 4.6 is more expensive than Gemini 3 Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 3 Flash accepts 1,000,000 input tokens compared to Claude Opus 4.6's 200,000 tokens. Claude Opus 4.6 can generate longer responses up to 128,000 tokens, while Gemini 3 Flash is limited to 65,536 tokens.
Input Capabilities
Supported data types and modalities
Both Claude Opus 4.6 and Gemini 3 Flash support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Opus 4.6
Gemini 3 Flash
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Opus 4.6 was released on 2026-02-05, while Gemini 3 Flash was released on 2025-12-17.
Claude Opus 4.6 is 2 months newer than Gemini 3 Flash.
Feb 5, 2026
1 months ago
1mo newerDec 17, 2025
2 months ago
Knowledge Cutoff
When training data ends
Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Claude Opus 4.6's cutoff date is not specified.
We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Opus 4.6's cutoff date.
—
Jan 2025
Provider Availability
Claude Opus 4.6 is available from Anthropic. Gemini 3 Flash is available from Google. The availability of providers can affect quality of the model and reliability.
Claude Opus 4.6
Gemini 3 Flash
Outputs Comparison
Key Takeaways
Claude Opus 4.6
View detailsAnthropic
Detailed Comparison
| Feature | | |
|---|