gpt-6-astra vs nemotron-3-ultra-550b-a55b
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- gpt-6-astra
- 1 advantage
- nemotron-3-ultra-550b-a55b
- 6 advantages
How to choose
gpt-6-astraReads images
nemotron-3-ultra-550b-a55bCheaper: about 13 a reply, 100% lessSteadier: 100% up over 3 daysSteadier this week: 100% of tests passedFaster: 1.1s on averageHigher in this week's ranking: #38Open weights
gpt-6-astra
By OpenAI
nemotron-3-ultra-550b-a55b
By NVIDIA
Where they differ
gpt-6-astranemotron-3-ultra-550b-a55b
On this site
92%14 callsAvailability, last 3 days100%5 calls
86%22 testsAvailability, this week's tests100%10 tests
2.0sAverage response this week1.1s
3,948Credits per reply13
~50Replies a day's check-in buys~288
#48Place in this week's ranking#38
20×Credit multiplier1×
The model itself
1.1M tokensContext length1M tokens
YesReads imagesNo
Apr 2026Knowledge cutoffNot published
4 Sep 2026Released4 Jun 2026
NoOpen weightsYes
Where they match
- Longest reply128K 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. Replies a day assumes a full daily check-in and the daily call limit.
Compare next
gpt-6-astra against other models
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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.