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JT

Jessica Taylor

HubSpot Certified, Former Marketing Director
Updated: January 18, 2026
Item - Ai assistants
Comparison

Claude Sonnet vs Claude Opus

Winner: Tie

This comparison results in a tie. Claude Sonnet excels in Speed and Cost. Claude Opus leads in Capability and Complex Tasks. Sonnet for speed; Opus for capability. For users prioritizing Speed, Claude Sonnet is the stronger choice. For those needing Capability, Claude Opus delivers better results.

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Head-to-Head Comparison

Speed

Tie
Claude Sonnet
4.8/5
Claude Opus
4/5

Sonnet is much faster. Claude Sonnet holds a moderate edge with a score of 4.8/5 compared to 4/5.

Capability

Tie
Claude Sonnet
4.5/5
Claude Opus
4.9/5

Opus is most capable. Claude Opus holds a slight lead with a score of 4.9/5 compared to 4.5/5.

Cost

Tie
Claude Sonnet
4.7/5
Claude Opus
3.5/5

Sonnet is cheaper. Claude Sonnet holds a significant advantage with a score of 4.7/5 compared to 3.5/5.

Complex Tasks

Tie
Claude Sonnet
4.3/5
Claude Opus
4.8/5

Opus handles complexity better. Claude Opus holds a moderate edge with a score of 4.8/5 compared to 4.3/5. This noticeable difference in Complex Tasks performance Claude Opus holds a moderate edge with a score of 4.8/5 compared to 4.3/5. This noticeable difference in Complex Tasks performance

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Our Recommendation

Choose Claude Sonnet if you...

Choose Claude Opus if you...

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Frequently Asked Questions

When use Opus?
Complex analysis, research, difficult tasks.
When use Sonnet?
Most everyday tasks; good balance.
Which is better: Claude Sonnet or Claude Opus?
Choosing between Claude Sonnet and Claude Opus depends on your priorities. Claude Sonnet excels in speed, cost, making it ideal for users who value these capabilities. Claude Opus is stronger in capability, complex tasks, better serving users with those requirements. For ai assistants tasks, evaluate which strengths align with your daily workflow. If Speed matters most, lean toward Claude Sonnet. If Capability is your priority, Claude Opus is likely the better fit.

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Last updated: January 18, 2026
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