Model Comparison
Claude Sonnet 4.5 vs Gemini 1.0 Pro
Claude Sonnet 4.5 significantly outperforms across most benchmarks. Gemini 1.0 Pro is 8.0x cheaper per token.
Performance Benchmarks
Comparative analysis across standard metrics
Claude Sonnet 4.5 outperforms in 1 benchmarks (GPQA), while Gemini 1.0 Pro is better at 0 benchmarks.
Claude Sonnet 4.5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Sonnet 4.5 ($3.00/1M tokens) is 6.0x more expensive than Gemini 1.0 Pro ($0.50/1M tokens).
For output processing, Claude Sonnet 4.5 ($15.00/1M tokens) is 10.0x more expensive than Gemini 1.0 Pro ($1.50/1M tokens).
In conclusion, Claude Sonnet 4.5 is more expensive than Gemini 1.0 Pro.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude Sonnet 4.5 accepts 200,000 input tokens compared to Gemini 1.0 Pro's 32,760 tokens. Claude Sonnet 4.5 can generate longer responses up to 64,000 tokens, while Gemini 1.0 Pro is limited to 8,192 tokens.
Input Capabilities
Supported data types and modalities
Claude Sonnet 4.5 supports multimodal inputs, whereas Gemini 1.0 Pro does not.
Claude Sonnet 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude Sonnet 4.5
Gemini 1.0 Pro
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 Sonnet 4.5 was released on 2025-09-29, while Gemini 1.0 Pro was released on 2024-02-15.
Claude Sonnet 4.5 is 20 months newer than Gemini 1.0 Pro.
Sep 29, 2025
6 months ago
1.6yr newerFeb 15, 2024
2.2 years ago
Knowledge Cutoff
When training data ends
Claude Sonnet 4.5 has a knowledge cutoff of 2025-01-31, while Gemini 1.0 Pro has a cutoff of 2024-02-01.
Claude Sonnet 4.5 has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Gemini 1.0 Pro (2024-02-01).
Jan 2025
11 mo newerFeb 2024
Provider Availability
Claude Sonnet 4.5 is available from Anthropic. Gemini 1.0 Pro is available from Google.
Claude Sonnet 4.5
Gemini 1.0 Pro
Outputs Comparison
Key Takeaways
Claude Sonnet 4.5
View detailsAnthropic
Detailed Comparison
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FAQ
Common questions about Claude Sonnet 4.5 vs Gemini 1.0 Pro