ClaudevsClaude

Claude Opus 4.7 vs Claude Sonnet 5.5

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Claude Opus 4.7

Flagship

Claude Sonnet 5.5

Mid-tier
Input $/MTok
$5.00
$2.00
Output $/MTok
$25.00
$10.00
Cache discount
90% off
90% off
Context
1,000K
1,000K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
63
vs
0
Code Review
0
vs
0
Summarization
66
vs
0
Q&A
0
vs
0
Extraction
73
vs
0
Reasoning
87
vs
0
Classification
0
vs
0
Creative Writing
69
vs
0
Claude Opus 4.7
Claude Sonnet 5.5

Guidance

When to use Claude Opus 4.7 vs Claude Sonnet 5.5

Choose Claude Opus 4.7 when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose Claude Sonnet 5.5 when...

  • -Cost matters: 60% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 4.7
Claude Sonnet 5.5
100K tokens
$1.10
$0.44Cheaper
1M tokens
$11.00
$4.40Cheaper
10M tokens
$110.00
$44.00Cheaper

FAQ

When should I use Claude Opus 4.7 instead of Claude Sonnet 5.5?

Claude Opus 4.7 and Claude Sonnet 5.5 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Claude Sonnet 5.5 cheaper than Claude Opus 4.7?

Yes. Claude Sonnet 5.5 input costs $2.00/MTok vs $5.00/MTok for Claude Opus 4.7, saving 60% on input.

What are the context window sizes for Claude Opus 4.7 and Claude Sonnet 5.5?

Claude Opus 4.7 has a 1,000K token context window. Claude Sonnet 5.5 has a 1,000K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.