+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Claude Opus 4.1 vs Claude Sonnet 4
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 3.4% higher average benchmark score. Claude Sonnet 4 offers 96.0K more tokens in context window than Claude Opus 4.1. Claude Sonnet 4 is $72.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
+
+
+
+
Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
+
+
+
+
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.
2 months newer
Claude Sonnet 4
Anthropic
2025-05-22
Claude Opus 4.1
Anthropic
2025-08-05
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
Claude Opus 4.1
Input:$15.00
Output:$75.00
+
+
+
+
Claude Sonnet 4
Input:$3.00
Output:$15.00($72.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 7 common benchmarks
+
+
+
+
Claude Opus 4.1
Average Score:72.1%(+3.4%)
+
+
+
+
Claude Sonnet 4
Average Score:68.7%
Performance comparison across key benchmark categories
+
+
+
+
Claude Opus 4.1
Coding74.5%(+1.8%)
+
+
+
+
Claude Sonnet 4
Coding72.7%
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
+
+
+
+
Claude Opus 4.1
Avg Score:72.1%(+3.4%)
Providers:4
+
+
+
+
Claude Sonnet 4
Avg Score:68.7%
Providers:4