claude-opus-5.5 vs gemini-3.8-flash
Both run on onomeo with free credits. Everything below comes from calls made through this site.
- claude-opus-5.5
- 3 advantages
- gemini-3.8-flash
- 2 advantages
How to choose
claude-opus-5.5Steadier: 50% up over 3 daysSteadier this week: 66% of tests passedFaster: 1.4s on average
gemini-3.8-flashCheaper: about 295 a reply, 96% lessHigher in this week's ranking: #36
claude-opus-5.5
By Anthropic
gemini-3.8-flash
By Google
Where they differ
claude-opus-5.5gemini-3.8-flash
On this site
50%6 callsAvailability, last 3 days27%11 calls
66%9 testsAvailability, this week's tests25%20 tests
1.4sAverage response this week5.6s
6,732Credits per reply295
~29Replies a day's check-in buys~288
#47Place in this week's ranking#36
15×Credit multiplier1×
The model itself
128K tokensLongest reply64K tokens
Jun 2026Knowledge cutoffNot published
22 Sep 2026Released2 Sep 2026
Where they match
- Context length1M tokens
- 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
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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.