Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. Claude 3.7 Sonnet offers 62.0K more tokens in context window than Grok Code Fast 1. Grok Code Fast 1 is $16.30 cheaper per million tokens. Claude 3.7 Sonnet supports multimodal inputs. Claude 3.7 Sonnet is available on 4 providers. Both models have their strengths depending on your specific coding needs.
Anthropic
Claude 3.7 Sonnet represents Anthropic's first hybrid reasoning model, capable of producing near-instant responses or extended step-by-step thinking that is visible to users. Developed with particularly strong improvements in coding and front-end web development, it allows users to control thinking budgets and balances real-world task performance with reasoning capabilities for enterprise applications.
xAI
Grok Code Fast was developed as a specialized coding model optimized for speed, designed to provide rapid code completion, generation, and assistance. Built to serve developers requiring quick feedback and iterative coding support, it combines programming expertise with low-latency responses.
6 months newer

Claude 3.7 Sonnet
Anthropic
2025-02-24

Grok Code Fast 1
xAI
2025-08-28
Cost per million tokens (USD)

Claude 3.7 Sonnet

Grok Code Fast 1
Context window and performance specifications
Average performance across 1 common benchmarks

Claude 3.7 Sonnet

Grok Code Fast 1
Performance comparison across key benchmark categories

Claude 3.7 Sonnet

Grok Code Fast 1
Available providers and their performance metrics

Claude 3.7 Sonnet
Anthropic
Bedrock
ZeroEval

Claude 3.7 Sonnet

Grok Code Fast 1

Claude 3.7 Sonnet

Grok Code Fast 1

Grok Code Fast 1
xAI