Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 16.8% higher average benchmark score. Claude Sonnet 4 offers 167.2K more tokens in context window than o1-preview. Claude Sonnet 4 is $57.00 cheaper per million tokens. Claude Sonnet 4 supports multimodal inputs. Claude Sonnet 4 is available on 4 providers. Overall, Claude Sonnet 4 is the stronger choice for coding tasks.
Anthropic
Claude Sonnet 4 was created as the balanced offering in the Claude 4 family, designed to provide strong intelligence with practical speed and cost efficiency. Built to serve as a versatile workhorse for diverse applications, it balances advanced capabilities with operational considerations for everyday enterprise and consumer use.
OpenAI
o1-preview was introduced as an early version of OpenAI's reasoning model series, designed to demonstrate the potential of AI models that engage in extended thinking before responding. Built to solve complex problems through deliberate reasoning processes, it represented an initial step toward more thoughtful and analytical AI systems.
8 months newer

o1-preview
OpenAI
2024-09-12

Claude Sonnet 4
Anthropic
2025-05-22
Cost per million tokens (USD)

Claude Sonnet 4

o1-preview
Context window and performance specifications
Average performance across 2 common benchmarks

Claude Sonnet 4

o1-preview
Performance comparison across key benchmark categories

Claude Sonnet 4

o1-preview
Available providers and their performance metrics

Claude Sonnet 4
Anthropic
Bedrock
ZeroEval

Claude Sonnet 4

o1-preview

Claude Sonnet 4

o1-preview

o1-preview
Azure
OpenAI