tokevenClaude Sonnet 4.6 vs Claude Mythos 5.1
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 4.6
Mid-tierClaude Mythos 5.1
FlagshipQuality
Task confidence comparison
Guidance
When to use Claude Sonnet 4.6 vs Claude Mythos 5.1
Choose Claude Sonnet 4.6 when...
- -Cost matters: 70% cheaper on input tokens
Choose Claude Mythos 5.1 when...
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
FAQ
When should I use Claude Sonnet 4.6 instead of Claude Mythos 5.1?
Claude Sonnet 4.6 and Claude Mythos 5.1 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Claude Mythos 5.1 cheaper than Claude Sonnet 4.6?
Claude Mythos 5.1 input costs $10.00/MTok, which is 233% more than Claude Sonnet 4.6 at $3.00/MTok.
What are the context window sizes for Claude Sonnet 4.6 and Claude Mythos 5.1?
Claude Sonnet 4.6 has a 1,000K token context window. Claude Mythos 5.1 has a 1,000K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Sonnet 4.6 and Claude Mythos 5.1 stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.