Comprehensive side-by-side LLM comparison
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 Instant, released by OpenAI in November 2025, is a low-latency variant from the GPT-5.1 family optimized for fast response times and high-throughput workloads. It targets real-time applications, conversational assistants, and production APIs where response speed is a primary requirement alongside GPT-5.1-generation reasoning quality.
8 months newer

Claude 3.7 Sonnet
Anthropic
2025-02-24

GPT-5.1 Instant
OpenAI
2025-11
Context window and performance specifications
Claude 3.7 Sonnet
2024-10
Available providers and their performance metrics
Claude 3.7 Sonnet
Anthropic
AWS Bedrock
Google Cloud Vertex AI
GPT-5.1 Instant
Claude 3.7 Sonnet
GPT-5.1 Instant
Claude 3.7 Sonnet
GPT-5.1 Instant