Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.
- Context window: 1,000,000 tokens
- Input: text, image, file
- Output: text
- Pricing: $3/M input tokens, $15/M output tokens
Community sentiment
Mixed (+4) — 8 positive, 5 negative, 7 neutral across 20 community samples from X and the web, as of 2026-10-02.
Conversation about Claude Sonnet 4.6 is mixed: users praise its reasoning and usefulness for everyday, high-volume tasks and report it helping with content/support, while critics point to measurable issues such as high latency in some regions, documented gender-bias findings, and cases where smaller fine-tuned models outperform it. Overall sentiment trends slightly positive but is close to neutral
- “A fine-tuned model can outperform frontier models and be cheaper and faster to run. Literally, every company I've met wants this. I want you to see these results from fine-tuning Qwen3 4B on AWS. It smokes both the out-of-the-box model and Claude Sonnet 4.6. https://t.co/qZy4sjYB” — X
- “Claude Sonnet 4.6 is the smartest Al right now. But 90% of people prompt it like ChatGPT. That's why I made the Claude Mastery Guide: → How Claude thinks differently → Prompts built for Claude → 2000+ Al Prompts Comment " Claude " and I'll DM it free. https://t.co/jXJcXyZs4p” — X
- “Gender Bias Study: Anthropic’s Claude Sonnet 4.6 And OpenAI’s GPT-5.5 Say It’s OK To Abuse A Man But Not A Woman To Prevent Nuclear Apocalypse, While DeepSeek’s V4-Flash Shows No Such Bias https://t.co/n3fg9KUW7l” — X
- “Opus vs Sonnet: Which AI model is best for coding in WordPress? — 6 days ago · The bottom line? Sonnet 4.6 for your everyday, high-volume, customer- facing AI work. Opus 4.6 for your most important, complex, detail- heavy tasks.” — the web
View on OpenRouter.
Model data sourced from OpenRouter.