Comprehensive side-by-side LLM comparison
Claude Sonnet 4.5 leads with 32.4% higher average benchmark score. Claude Sonnet 4.5 is available on 2 providers. 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.
xAI
Grok 2 Mini was created as a more efficient variant of Grok 2, designed to provide strong capabilities with reduced computational requirements. Built to make Grok 2's advancements accessible to applications with tighter resource constraints, it balances performance with practical deployment needs.
1 year newer

Grok-2 mini
xAI
2024-08-13

Claude Sonnet 4.5
Anthropic
2025-09-29
Context window and performance specifications
Average performance across 1 common benchmarks

Claude Sonnet 4.5

Grok-2 mini
Claude Sonnet 4.5
2025-01-31
Available providers and their performance metrics

Claude Sonnet 4.5
Anthropic
ZeroEval


Claude Sonnet 4.5

Grok-2 mini

Claude Sonnet 4.5

Grok-2 mini
Grok-2 mini