Gemini 3.1 Pro vs Claude Opus 4.5 Comparison
Comparing Gemini 3.1 Pro and Claude Opus 4.5 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Gemini 3.1 Pro outperforms in 5 benchmarks (ARC-AGI v2, GPQA, MCP Atlas, MMMLU, Terminal-Bench 2.0), while Claude Opus 4.5 is better at 1 benchmark (SWE-Bench Verified).
Gemini 3.1 Pro significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
Cost data unavailable.
Context Window
Maximum input and output token capacity
Only Claude Opus 4.5 specifies input context (200,000 tokens). Only Claude Opus 4.5 specifies output context (64,000 tokens).
Input Capabilities
Supported data types and modalities
Both Gemini 3.1 Pro and Claude Opus 4.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 3.1 Pro
Claude Opus 4.5
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
Gemini 3.1 Pro was released on 2026-02-19, while Claude Opus 4.5 was released on 2025-11-24.
Gemini 3.1 Pro is 3 months newer than Claude Opus 4.5.
Feb 19, 2026
3 weeks ago
2mo newerNov 24, 2025
3 months ago
Knowledge Cutoff
When training data ends
Gemini 3.1 Pro has a knowledge cutoff of 2025-01-31, while Claude Opus 4.5 has a cutoff of 2025-03-31.
Claude Opus 4.5 has more recent training data (up to 2025-03-31), making it potentially better informed about events through that date compared to Gemini 3.1 Pro (2025-01-31).
Jan 2025
Mar 2025
2 mo newerOutputs Comparison
Key Takeaways
Claude Opus 4.5
View detailsAnthropic
Detailed Comparison
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