Claude Sonnet 4.6 Arrives, Matching Opus Performance at Lower Cost!

product #llm 📝 Blog|Analyzed: Feb 18, 2026 00:18•

Published: Feb 17, 2026 23:58

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1 min read

Analysis

Anthropic's new Claude Sonnet 4.6 is here, promising performance on par with the previously released Opus 4.5. The exciting part? It maintains Sonnet's competitive pricing! This offers users a fantastic opportunity to access powerful capabilities without breaking the bank.

Key Takeaways

•Claude Sonnet 4.6 is now available, boasting comparable performance to Opus 4.5.
•The new model retains the same budget-friendly pricing as previous Sonnet versions.
•Developers can leverage the updated llm-anthropic library for immediate access and compatibility.

Reference / Citation

View Original

"Sonnet 4.6 is out today, and Anthropic claim it offers similar performance to November's Opus 4.5 while maintaining the Sonnet pricing of $3/million input and $15/million output tokens"

Simon WillisonFeb 17, 2026 23:58

* Cited for critical analysis under Article 32.

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