+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Claude 3.7 Sonnet vs GPT-5.1 Codex Max
Comprehensive side-by-side LLM comparison
Claude 3.7 Sonnet supports multimodal inputs. Claude 3.7 Sonnet is available on 3 providers. Both models have their strengths depending on your specific coding needs.
+
+
+
+
Anthropic
Claude Sonnet 3.7, released by Anthropic in February 2025, is a large language model from the Claude 3 family featuring hybrid reasoning with configurable extended thinking. It supports a 200K token context window, 64K maximum output tokens (128K in beta), and native image understanding. Sonnet 3.7 targets complex coding, mathematics, and scientific reasoning tasks where extended chain-of-thought processing provides meaningful improvements in output quality.
+
+
+
+
OpenAI
GPT-5.1 Codex Max, released by OpenAI in November 2025, is an enhanced coding variant from the GPT-5.1 Codex line, designed for more complex software engineering tasks requiring additional reasoning depth. It targets large-scale code generation, automated refactoring, and sophisticated agentic development workflows.
8 months newer
Claude 3.7 Sonnet
Anthropic
2025-02-24
GPT-5.1 Codex Max
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
+
+
+
+
Knowledge Cutoff
Training data recency comparison
Claude 3.7 Sonnet
2024-10
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Claude 3.7 Sonnet
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
+
+
+
+
GPT-5.1 Codex Max
+
+
+
+
Claude 3.7 Sonnet
Avg Score:0.0%
Providers:3
+
+
+
+
GPT-5.1 Codex Max
Avg Score:0.0%
Providers:0