claude-opus-5.5 vs deepseek-v4.1-flash
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- claude-opus-5.5
- 2 advantages
- deepseek-v4.1-flash
- 4 advantages
How to choose
claude-opus-5.5Cheaper: about 6,732 a reply, 20% lessFaster: 1.4s on average
deepseek-v4.1-flashSteadier: 100% up over 3 daysSteadier this week: 95% of tests passedHigher in this week's ranking: #22Open weights
claude-opus-5.5
By AnthropicNew this week
deepseek-v4.1-flash
By DeepSeek
Where they differ
claude-opus-5.5deepseek-v4.1-flash
On this site
57%7 callsAvailability, last 3 days100%52 calls
66%9 testsAvailability, this week's tests95%71 tests
1.4sAverage response this week21s
6,732Credits per reply8,409
~29Replies a day's check-in buys~23
#47Place in this week's ranking#22
15×Credit multiplier1×
The model itself
128K tokensLongest reply384K tokens
Used to train and improve the provider’s models.Conversations used for trainingThe provider does not say.
Jun 2026Knowledge cutoffMay 2025
22 Sep 2026Released10 Sep 2026
NoOpen weightsYes
Where they match
- Context length1M tokens
- Reads imagesYes
- Calls toolsYes
- Thinks before answeringYes
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. Replies a day assumes a full daily check-in and the daily call limit.
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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.