claude-sonnet-5.5 vs gpt-6-luna
Both can be used on onomeo. Everything below comes from calls made through this site.
- claude-sonnet-5.5
- No edge in the figures
- gpt-6-luna
- 2 advantages
How to choose
claude-sonnet-5.5No edge in the figures
gpt-6-lunaCheaper: about $0.0023 a reply, 38% lessHigher in this week's ranking: #37
claude-sonnet-5.5
By AnthropicNew this week
gpt-6-luna
By OpenAI
Where they differ
claude-sonnet-5.5gpt-6-luna
On this site
—Availability, last 3 days100%9 calls
1.5sAverage response this week1.6s
$0.0037Price per reply$0.0023
#43Place in this week's ranking#37
$50.00Price per million characters—
The model itself
1M tokensContext length1.1M tokens
Jun 2026Knowledge cutoffMay 2026
28 Sep 2026Released22 Sep 2026
Where they match
- Availability, this week's tests100%
- Longest reply128K 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. Free models are counted in calls; big models are charged by usage, in US dollars.
Compare next
claude-sonnet-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 Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.