claude-opus-5.5 vs claude-sonnet-5
claude-sonnet-5 is paused.A paused model is switched off for now and cannot be called. Its figures below are the latest this site has for it.
- claude-opus-5.5
- No edge in the figures
- claude-sonnet-5
- 1 advantage
How to choose
claude-opus-5.5No edge in the figures
claude-sonnet-5Cheaper: about $0.004 a reply, 91% less
claude-opus-5.5
By Anthropic
claude-sonnet-5
By Anthropic
Use in chatDetails
Where they differ
claude-opus-5.5claude-sonnet-5
On this site
100%17 callsAvailability, last 3 days—
97%43 testsAvailability, this week's tests—
1.7sAverage response this week—
$0.044Price per reply$0.004
#44Place in this week's rankingUnranked
$98.33Price per million characters$15.00
The model itself
Jun 2026Knowledge cutoffJan 2026
22 Sep 2026Released30 Jun 2026
Where they match
- Context length1M tokens
- Longest reply128K tokens
- Reads imagesYes
- Calls toolsYes
- Thinks before answeringYes
- Conversations used for trainingUsed to train and improve the provider’s models
- Open weightsNo
Availability over 3 days counts every call made through the site; this week's availability counts every call over the last 7 days, scheduled tests included, and response time comes from the site's own scheduled tests. Free models are counted in calls; big models are charged by usage, in US dollars.
Compare next
claude-opus-5.5 against other models
Figures come from real calls made through this site. Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.