gpt-6-astra vs gpt-oss-20b
Both can be used on onomeo. Everything below comes from calls made through this site.
- gpt-6-astra
- 2 advantages
- gpt-oss-20b
- 3 advantages
How to choose
gpt-6-astraLonger context: 1.1M tokensReads images
gpt-oss-20bFaster: 1.2s on averageHigher in this week's ranking: #4Open weights
gpt-6-astra
By OpenAI
gpt-oss-20b
By OpenAI
Where they differ
gpt-6-astragpt-oss-20b
On this site
—Availability, last 3 days99%115 calls
100%14 testsAvailability, this week's tests98%205 tests
2.4sAverage response this week1.2s
$0.076Price per replyFree
#26Place in this week's ranking#4
$183.33Price per million charactersFree
The model itself
1.1M tokensContext length128K tokens
128K tokensLongest reply32K tokens
YesReads imagesNo
Apr 2026Knowledge cutoffJun 2024
4 Sep 2026Released5 Aug 2025
NoOpen weightsYes
Where they match
- 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
gpt-6-astra against other models
gpt-oss-20b 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.