nemotron-3-ultra-550b-a55b vs space-bunny-alpha
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- nemotron-3-ultra-550b-a55b
- 5 advantages
- space-bunny-alpha
- 1 advantage
How to choose
nemotron-3-ultra-550b-a55bCheaper: about 13 a reply, 99% lessSteadier: 100% up over 3 daysSteadier this week: 100% of tests passedFaster: 1.1s on averageOpen weights
space-bunny-alphaHigher in this week's ranking: #23
nemotron-3-ultra-550b-a55b
By NVIDIA
space-bunny-alpha
By Stealth
Where they differ
nemotron-3-ultra-550b-a55bspace-bunny-alpha
On this site
100%5 callsAvailability, last 3 days94%59 calls
100%10 testsAvailability, this week's tests94%59 tests
1.1sAverage response this week1.8s
13Credits per reply1,932
~288Replies a day's check-in buys~103
#38Place in this week's ranking#23
The model itself
128K tokensLongest reply512K tokens
4 Jun 2026Released23 Sep 2026
YesOpen weightsNo
Where they match
- Context length1M tokens
- Reads imagesNo
- 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. Replies a day assumes a full daily check-in and the daily call limit.
Compare next
nemotron-3-ultra-550b-a55b 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.