claude-opus-5.5 vs deepseek-v4.1-flash-1017
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-opus-5.5
- 1 advantage
- deepseek-v4.1-flash-1017
- 1 advantage
How to choose
claude-opus-5.5Reads images
deepseek-v4.1-flash-1017Open weights
claude-opus-5.5
By Anthropic
deepseek-v4.1-flash-1017
By DeepSeekNew in the last two weeks
Where they differ
claude-opus-5.5deepseek-v4.1-flash-1017
On this site
—Availability, last 3 days100%52 calls
—Availability, this week's tests100%52 tests
$30.00Reference price per million output tokens$2.25
UnrankedPlace in this week's ranking#1
$6.00Reference price per million input tokens$0.56
The model itself
128K tokensLongest reply384K tokens
YesReads imagesNo
Jun 2026Knowledge cutoffMay 2025
22 Sep 2026Released17 Oct 2026
NoOpen weightsYes
$0.30Reference price per million cache-read tokens$0.012
Where they match
- Context length1M tokens
- 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. Models marked as free are counted in calls; paid models are charged by usage, in US dollars.
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deepseek-v4.1-flash-1017 against other models
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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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.