+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Claude Sonnet 4.5 vs Gemini 1.5 Pro
Comprehensive side-by-side LLM comparison
Claude Sonnet 4.5 leads with 24.3% higher average benchmark score. Gemini 1.5 Pro offers 1.8M more tokens in context window than Claude Sonnet 4.5. Gemini 1.5 Pro is $5.50 cheaper per million tokens. Overall, Claude Sonnet 4.5 is the stronger choice for coding tasks.
+
+
+
+
Anthropic
Claude Sonnet 4.5 was developed to bridge human thinking and machine assistance, allowing people to work with language and tools in a more conversational and natural way. Built with a focus on turning ideas into results, it represents an evolution in making AI feel less mechanical while maintaining strong capabilities across reasoning, coding, and collaborative tasks.
+
+
+
+
Gemini 1.5 Pro was introduced as Google's advanced multimodal model with an expanded context window, designed to comprehend and reason across long documents, videos, and audio. Built to handle complex, information-rich tasks, it brought breakthrough capabilities in processing extended context while maintaining high-quality reasoning and generation.
1 year newer
Gemini 1.5 Pro
2024-05-01
Claude Sonnet 4.5
Anthropic
2025-09-29
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
Claude Sonnet 4.5
Input:$3.00
Output:$15.00
+
+
+
+
Gemini 1.5 Pro
Input:$2.50
Output:$10.00($5.50 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
Claude Sonnet 4.5
Average Score:83.4%(+24.3%)
+
+
+
+
Gemini 1.5 Pro
Average Score:59.1%
+
+
+
+
Knowledge Cutoff
Training data recency comparison
Gemini 1.5 Pro
2023-11-01
Claude Sonnet 4.5
2025-01-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Claude Sonnet 4.5
2 providers
Anthropic
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
+
+
+
+
+
+
+
+
Claude Sonnet 4.5
Avg Score:83.4%(+24.3%)
Providers:2
+
+
+
+
Gemini 1.5 Pro
Avg Score:59.1%
Providers:1