Claude Sonnet 4.6: Near Opus-Level Performance at a Fraction of the Price!

product#llm📝 Blog|Analyzed: Feb 21, 2026 18:30
Published: Feb 21, 2026 15:52
1 min read
Zenn LLM

Analysis

Anthropic's new Claude Sonnet 4.6 delivers impressive performance, rivaling even the powerful Opus model, but at the more affordable Sonnet price point! This update brings significant improvements in coding capabilities and introduces Adaptive Thinking, enhancing the model's efficiency and responsiveness.
Reference / Citation
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"Notably, the performance that could only be achieved with the Opus class has become available at the Sonnet price point."
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Zenn LLMFeb 21, 2026 15:52
* Cited for critical analysis under Article 32.