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Claude Opus 4.1 vs Claude Opus 4.6
Comprehensive side-by-side LLM comparison
Claude Opus 4.6 leads with 29.6% higher average benchmark score. Claude Opus 4.6 offers 96.0K more tokens in context window than Claude Opus 4.1. Claude Opus 4.6 is $60.00 cheaper per million tokens. Overall, Claude Opus 4.6 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1, released by Anthropic in August 2025, is a large language model from the Claude 4 family optimized for demanding reasoning, multi-step coding, and extended analysis tasks. It features a 200K token context window, 32K maximum output tokens, native image understanding, and extended thinking capabilities. Opus 4.1 targets complex problem-solving, multi-turn reasoning workflows, and applications requiring deep analysis with integrated tool use.
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Anthropic
Claude Opus 4.6, released by Anthropic in February 2026, is a large language model from the Claude 4 family designed for complex agent orchestration, extended reasoning, and long-form code generation. It features a 200K token context window (extendable to 1M tokens in beta), 128K maximum output tokens, native image understanding, and extended thinking with both standard and adaptive effort modes. Opus 4.6 targets multi-step agentic workflows, parallel tool use, and applications requiring sustained reasoning over large contexts.
6 months newer
Claude Opus 4.1
Anthropic
2025-08-05
Claude Opus 4.6
Anthropic
2026-02
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Claude Opus 4.6
Input:$5.00
Output:$25.00($60.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Opus 4.1
Average Score:49.3%
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Claude Opus 4.6
Average Score:78.9%(+29.6%)
Performance comparison across key benchmark categories
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Claude Opus 4.1
Science80.9%
Agents0.9%
Coding74.5%
Tool Use40.9%
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.1
2025-01
Claude Opus 4.6
2025-05
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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Claude Opus 4.6
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Claude Opus 4.1
Avg Score:49.3%
Providers:3
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Claude Opus 4.6
Avg Score:78.9%(+29.6%)
Providers:3