gemini-3.8-flash vs gpt-6-luna
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- gemini-3.8-flash
- 2 advantages
- gpt-6-luna
- 3 advantages
How to choose
gemini-3.8-flashCheaper: about 295 a reply, 90% lessHigher in this week's ranking: #36
gpt-6-lunaSteadier: 100% up over 3 daysSteadier this week: 100% of tests passedFaster: 1.0s on average
gemini-3.8-flash
By Google
gpt-6-luna
By OpenAI
Where they differ
gemini-3.8-flashgpt-6-luna
On this site
27%11 callsAvailability, last 3 days100%6 calls
25%20 testsAvailability, this week's tests100%8 tests
5.6sAverage response this week1.0s
295Credits per reply2,917
~288Replies a day's check-in buys~68
#36Place in this week's ranking#37
The model itself
1M tokensContext length1.1M tokens
64K tokensLongest reply128K tokens
Not publishedKnowledge cutoffMay 2026
2 Sep 2026Released22 Sep 2026
Where they match
- Reads imagesYes
- Calls toolsYes
- Thinks before answeringYes
- Conversations used for trainingUsed to train and improve the provider’s models
- Open weightsNo
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
gemini-3.8-flash 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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.