tokevenClaude Opus 4.8 vs Claude Sonnet 5
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 4.8
FlagshipClaude Sonnet 5
Mid-tierQuality
Task confidence comparison
Guidance
When to use Claude Opus 4.8 vs Claude Sonnet 5
Choose Claude Opus 4.8 when...
- -You need strong creative writing (confidence 81 vs 62)
- -You need strong extraction (confidence 73 vs 70)
- -You need strong summarization (confidence 69 vs 64)
Choose Claude Sonnet 5 when...
- -You need strong code review (confidence 96 vs 94)
- -You need strong q&a (confidence 89 vs 85)
- -You need strong classification (confidence 86 vs 80)
- -You need strong code generation (confidence 68 vs 63)
- -Cost matters: 60% cheaper on input tokens
At scale
Cost at scale
FAQ
When should I use Claude Opus 4.8 instead of Claude Sonnet 5?
Claude Opus 4.8 outperforms Claude Sonnet 5 for Summarization, Extraction, Creative Writing. It costs $5.00/$25.00 per million tokens (input/output).
Is Claude Sonnet 5 cheaper than Claude Opus 4.8?
Yes. Claude Sonnet 5 input costs $2.00/MTok vs $5.00/MTok for Claude Opus 4.8, saving 60% on input.
What are the context window sizes for Claude Opus 4.8 and Claude Sonnet 5?
Claude Opus 4.8 has a 1M token context window. Claude Sonnet 5 has a 1M 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 Opus 4.8 and Claude Sonnet 5 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.