claude-sonnet-5.5 vs deepseek-flash
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-sonnet-5.5
- 1 advantage
- deepseek-flash
- 3 advantages
How to choose
claude-sonnet-5.5Cheaper: about $0.0037 a reply, 33% less
deepseek-flashFaster: 0.7s on averageHigher in this week's ranking: #2Open weights
claude-sonnet-5.5
By Anthropic
deepseek-flash
By DeepSeek
Where they differ
claude-sonnet-5.5deepseek-flash
On this site
—Availability, last 3 days100%656 calls
1.5sAverage response this week0.7s
$0.0037Price per reply$0.0055
#43Place in this week's ranking#2
$50.00Price per million characters—
The model itself
128K tokensLongest reply384K tokens
Jun 2026Knowledge cutoffMay 2025
28 Sep 2026Released10 Sep 2026
NoOpen weightsYes
Where they match
- Availability, this week's tests100%
- Context length1M tokens
- Reads imagesYes
- Calls toolsYes
- Thinks before answeringYes
- Conversations used for trainingUsed to train and improve the provider’s models
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-sonnet-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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.