Question 1

Opus vs Sonnet — which should I use?

Accepted Answer

Sonnet 4.6 for everyday creative work — it's the default because it balances intelligence, speed, and cost well. Upgrade to Opus 4.7 (smartest) or Opus 4.6 (smart) for complex multi-step projects where deeper reasoning beats faster response.

Question 2

Is Opus 4.7 worth the extra cost?

Accepted Answer

For complex creative briefs, research-heavy work, or long-form writing — yes. For simple generation tasks, Sonnet 4.6 delivers nearly identical results at a lower credit cost.

Question 3

What's the difference between Opus 4.6 and 4.7?

Accepted Answer

Opus 4.7 (March 2026) is Anthropic's latest, most capable model. Opus 4.6 (January 2026) is the prior generation — still very strong for complex work, and often a better cost-to-capability trade than 4.7 for most projects.

Question 4

Can I switch between Opus and Sonnet mid-project?

Accepted Answer

Yes. Flik AI's model picker lets you switch per chat. A common pattern is to draft with Sonnet 4.6, escalate specific hard turns to Opus 4.7, then switch back to Sonnet for follow-ups.

Flik AI | Claude Opus vs Sonnet — When to Use Each